There is no good/bad, right/wrong option, and neither is there really an "option" at all, since "option" would infer that we as humans have some sort of "choice" or "free will". It is my thinking that these things are illusions, nothing more. Everything that happens just happens. One thing leads to another, which leads to another, no one really chooses to do anything.

But anyway, to answer the original question, I don't think you can erase your thoughts/feelings through hypnotism or other means. I haven't tried it, but I really doubt it could work. There are so many things about the human brain that we don't understand, there are probably thoughts embedded within thoughts that would still give you such feelings even if you somehow could "erase" them, I think it just becomes a part of who we are for the rest of our lives.

I feel like no, I can't clean this slate, I feel stuck and hopeless. Life sucks and I cannot understand anyone who can say "Life is Good".