Thank you guys for your support and tips, it means a lot to me.
Its just no matter what I do its never enough and I am really tired. I am 28 now and I still did not managed to finish school, I have no family, no friends, no permanent place to stay, no money, unsure job ...
Even if I would die here, no one would find out ...
Don't bother about the school. Join the army. I'm serious. You can earn various qualification there, meet people, travel places, earn some money, build character and you'll have some time to figure what do you want to do with the rest of your life.
also - move this to 'off-topic'