How literally can you follow the gospel?

Today, we read of a challenging passage in the gospel of Mark. To say that the passage is challenging is an understatement because if we follow it literally, we will be maimed.
And if your hand causes you to sin, cut it off; it is better for you to enter life maimed than with two hands to go to hell, to the unquenchable fire.
And if your foot causes you to sin, cut it off; it is better for you to enter life lame than with two feet to be thrown into hell.
And if your eye causes you to sin, pluck it out; it is better for you to enter the kingdom of God with one eye than with two eyes to be thrown into hell (Mark 9:43, 45, 47).
I always quote this passage to tease those who insist on interpreting the bible literally. Had we followed it literally, heaven would have filled with handicapped people. Heaven would be a heaven of disabilities. In fact, no such heaven would exist because according to theologians of the Middle Ages, God would restore and make perfect our risen body. We will only be handicapped in this life, not in the next.

When I was doing my annual research paper, I came across the ethics of mutilation in medical ethics. I came across Origen, a Church Father who castrated himself after meditating on the same gospel passage. The Church was not happy about it. In the end, the Latin Church did not ordain him and never canonizes him. Why? Why is it acceptable to amputate the limbs, but not the sexual organ?

It is easier for those who interpret the Bible literally to answer my questions. Why? Because the gospel does not say "If your sexual organ causes you to sin, cut it off, it is better for you to enter life as a eunuch than with your balls to be thrown to hell." Therefore, it is ethically not acceptable to castrate yourself in order not to allow your balls to cause you to sin. Therefore, if you see a beautiful girl and lust after her. You follow her to a quiet place, overpower her with your hand and rape her. Then you should amputate your hand and foot, pluck one eye out but not castrate yourself! Don't you think it is better and more effective simply to remove your balls than to do so many things?

For those who interpret the Bible figuratively, they have an even better time. The message of the passage is more important than the letters. The passage tells us to have the courage and determination to cut yourself away from circumstances leading to sin. Therefore, if you see a beautiful girl and etc., don't do it next time. Don't look at beautiful girls. Don't go to quiet places. Don't ... etc. Don't you think it is hypocritical? Castrate yourself to demonstrate your determination and courage!

I read of an explanation. It states that the Church does not want us to take a physical shortcut. We should keep our sexual organ, limbs and eyes which are the sources of all these temptations. Engage in the spiritual struggle instead.

Dear Lord, give my mum strength to struggle against her alcoholism. Give me a humble heart to accept her addiction and a love that can motivate her to kick the addiction. Amen.