If it were really true that you could pluck out your eye or cut off your right hand because you repented after taking the mark of the beast so that you get into heaven and not end up being tormented with fire and brimstone in the presence of God's holy angels and in the presence of the Lamb and get no rest night or day, then wouldn't the following fictional scenarios of these 4 fictional men be possible?

The first man cuts off his right hand because it offended him that the mark of the beast was in his right hand.  This would cause severe pain and bleeding, but he didn't want to be end up being tormented forever with fire and brimstone. He thought he would be entering heaven.

The second man, who took the mark of the beast in his forehead, plucked out an eyeball causing pain & bleeding as well.  He also wanted to enter heaven.  However, he also ended up plucking out his second eyeball because his 2nd eyeball was offended by seeing the mark of the beast still in his forehead so he bled and suffered more pain while thinking he could enter heaven.

The third man who lost his right hand and eyesight in both eyes in an accident, but took the mark of the beast in the forehead.  He doesn't see how his eyes could offend him because he can't see the mark of the beast in his forehead.  He is only supposed to pluck out his eye if it offends him so he leaves his two blind eyes in his eye sockets while thinking he can enter heaven.

The fourth man also lost his right hand and eyesight in both eyes in an accident, but took the mark of the beast in the forehead.  However, he plucks out both of his 2 glass eyeballs from their sockets because the two glass eyeballs offended him because he couldn't see with them.  It was painless to pop them out.  He shed no blood doing so, and he thinks he can also enter heaven.

So IF it were really true that a person taking the mark of the beast in the right hand or in the forehead and then cut off either the right hand or pluck out an eyeball, would these 4 fictional men enter heaven & live happily ever after?  Or would they be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb and live unhappily ever after while getting no rest day or night?  In these 4 fictional stories, either of the scenario endings could happen because fiction is not based entirely on truth while the Bible is the entire truth. 

However, in reality which is not fiction, the beast and the false prophet want to make sure that anyone receiving the mark of the beast will remain loyal to them, and this loyalty is shown by first worshipping the image of the beast and then receiving the mark of the beast in the forehead or in the right hand in order to buy and sell.  The mark of the beast would distinguish between those who worshipped the beast and his image and those who did not. So those having no mark once they were found; and if they refused to worship the beast and his image of the beast, they are killed and never receive the mark of the beast because they are loyal & faithful to God according to Rev. 14:12-13 and they die for their faith by being beheaded.  Christ is the head of the church according to Ephesians 5:23 and Satan is not the head. 

Jesus Christ, the author and the finisher of our faith who is the way, the truth, and the life, and also called the Word, didn't leave people clueless to not worship the image of the beast because the 10 Commandments were given centuries ago.  The first commandment was given in Exodus 20:1-5, "And God spake all these words, saying, I am the LORD thy God, which have brought thee out of the land of Egypt, out of the house of bondage. Thou shalt have no other gods before me. Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth:  Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;"  

That should be the clue that the Antichrist is not God even if he sits in the Temple of God on Earth and shows himself that he is God because the real God, the Father (Yahweh) & Jesus Christ, His Son, would never ask anyone to break His first commandment of making an image of the beast nor worshipping an image of any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth."  According to Rev. 13:14 The False Prophet says "to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword and did live."  And according Rev. 13:15 the False Prophet will ".... cause that as many as would not worship the image of the beast should be killed."  And he causeth all, both small and great , rich and poor, free and bond, to receive a mark in their right hand or in their foreheads, and that no man might buy or sell, save he had the mark, or the name of the beast or the number of his name."

However, prior to anyone worshipping the image of the beast and receiving the mark of the beast, the everlasting gospel is preached to EVERYONE ON EARTH IN EVERY NATION according to Rev. 14:6.

Rev. 14:6-7 says, "And I saw another angel fly in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people, Saying with a loud voice, Fear God, and give glory to him; for the hour of his judgment is come: and worship him that made heaven, and earth, and the sea, and the fountains of waters."

Then another angel is sent to warn EVERYONE in advance of receiving the mark of the beast because Rev. 14:9-11 says,  "And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand, The same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation; and he shall be tormented with fire and brimstone in the presence of the holy angels, and in the presence of the Lamb: And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name."

There is nothing in the entire book of Revelation, or in the above warning in Rev. 14:9-11 about cutting off one's right hand after taking the mark of the beast in the right hand nor about plucking out an eyeball after taking the mark of the beast in the forehead so that they wouldn't be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb which means there is no escape clause and no loophole for the 4 fictional men if they had been real.

It wasn't an angel who came up with the warning not to worship the beast & his image or to receive his mark because Revelation 1:1-3 says, "The Revelation of Jesus Christ, which God gave unto him, to shew unto his servants things which must shortly come to pass; and he sent and signified it by his angel unto his servant John: Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw.  Blessed is he that readeth, and they that hear the words of this prophecy, and keep those things which are written therein: for the time is at hand."  God himself gave the entire book of Revelation to John to reveal to us.  If God had wanted to put in the warning that a person receiving the mark of the beast could later cut off his right hand or pluck out his eyeball, it would have been there.  So the 4 fictional men depicted in this post mentally added to the book of Revelation & believed that they could escape future torment with fire and brimstone and enter heaven.   However, Rev. 22:18-19 says, "For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book: And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book."

Jesus also said in Rev. 3:12, "Him that overcometh will I make a pillar in the temple of my God, and he shall go no more out: and I will write upon him the name of my God, and the name of the city of my God, which is new Jerusalem, which cometh down out of heaven from my God: and I will write upon him my new name."  

The overcomers are shown in Rev. 15:2,  "And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, and over the number of his name, stand on the sea of glass, having the harps of God." The overcomers are also shown in Rev. 20:4, "And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years."

All of them were beheaded and none of them ever worshipped the beast nor his image nor had they received his mark upon their foreheads or in their hands.