Story about nails and life...

The son returned home after a long time studying at the university.
- What have you learned son?
- I’ve been learnt taught (am I right? I want to express that he says: “the teachers teach me”…, I don’t mean he was examined like the patient) alot of with much and very difficult things (More natural in this situation "I've been learning about alot of very difficult subjects"). There is no point to telling you, all the same because you won’t understand it.
Then the father asked the son to nail every board in the hedge (Do you mean a fence?). It takes the son half a day. When the father asked the son if it was difficult, the son answered "no, it was easy". Then the father asked the son to take out the nails, and promised to explain the sense of it later.
It was hard to take the nails out and takes the whole day.
- Was it hard? – father asked,
- Yeah, it is unlikable and boring work.
- Are there the marks remaining?
- Yes, of course!
- Ok. So insulting someone, we is as if hammering in a nail, and it is easy. Apologizing (making excuse?) and repenting in acts we is as if pullling out these nails, and it’s harder, and the marks remains in the soul of a man!
Is it good to use “mark” ? If you want to make it really professional, then yes.
Is it understandably that “harder” means “more difficult in psychological sense”? Yes
Thanks in advance for your correct!

Story about nails and life...

The son returned home after a long studying at the university.
- What have you learned, son?
- I’ve been learnt (am I right? I want to express that he says: “the teachers teach me”…, I don’t mean he was examined like the patient) with much and very difficult things. There is no point to tell you, all the same you won’t understand.
Then the father asked the son to nail every board in the hedge. It takes the son half day. When the father asked the son was it difficult, the son answered not. It was easy. Then the father asked the son to take out the nails, promised to explain the sense later.
It was hard to take the nails out and takes the whole day.
- Was it hard? – father asked,
- Yeah, it is unlikable and bore work.
- Are there the marks remain?
- Yes, of course!
- Ok. So insulting someone, we as if hammer in a nail and it is easy. Apologizing (making excuse?) and repenting in acts we as if pull out this nail. And it’s harder! And the marks remains in the soul of man.
Is it good to use “mark” ?
Is it understandably that “harder” means “more difficult in psychological sense”?
Thanks in advance for your correct!!!