I fantasize about going insane
I'm very confused about why do you need to fantasize about that?
I've thought that the most satisfying way to go insane would be to cut my nipples off.
You really shouldn't fantasize about insanity. It's not fun and not funny at all.
Why can't I fantasized about my nipples off?
Because that will make you injure yourself and you will end up in the hospital with hefty bills that you need to pay, just because of something you're fantasizing. I suggest you get mental health help so that you don't actually act on your fantasies as it can really be costly for you.