I study in sphere of IT. And mistakes come naturally when studying, but the system which is used is set in a way that concerning certain subjects we cannot make a single mistake to pass (I've already had such exams). Therefore it feels that what we know is not so important.

I don't give up. That's one of my personality traits that should be positive, but it led me only to suffering.

You were lucky to have something like this. In my university, no one cares about our well being, especially our faculty is not doing anything for that, not even traditional events which should be on universities.
I am in close contact with critical thinking as significant part of my high school payed attention to that.

Still, I assume my studies are not such a severe problem for me. Other things I wrote about are bothering me more. Love, family, friends, health, passions...