Hi, neighbour, I'm from Croatia Hungarian is a lovely language but kind of hard to master it yet, it is unique.
You have lovely goals. Did you try going to theraphy cause, I feel you need to help yourself first, talking to someone and then dreams will come.
If you don't want to, here are my solutions, in a way. I knew of Interpals site and there are a lot of native people there; it depends what language you want to learn but, you can choose it there and communicate with people there. It's not just for studying.
For conference interpreter, I'm not sure. Maybe to study a political science. You can do it online but, I think you have to pay it or enroll in college, after taking an exam. Since it is Bologna learning system now, I'm not sure how it works yet, it is possible. If not, maybe trying applying to some firms in Hungary so, you can get experience first.
The last one, maybe that's the hardest one but, I also feel you need to have a money for operation. I know it will be different if your family supports you, even emotionally, but, if you tell them, since, you're their family as well, things may turn out as good.
Actually, this is the last one. Don't commit a sucide, it is not the way especially, if it doesn't go well (if you became an invalid, for example) so, you'll feel even worse and end up in a nut house and, i know you're smarter than that. Right now, you're just emotionally damaged and, I'm sorry how you're feeling.
Please, stay with us