There's a black hole in my head

I haven't made a forum discussion in a while, have a small train with bundled Indiegala games:

Solve this first, it's not hard (Sgtools, basic rules, LV 1+)

(If you don't care about a stranger's rambling please stop here and help yourself to the above train)

So I'm finishing this course and hopefully will have a good enough degree to find a job, but I'm having a really hard time and most of it is because of my brain being terrible. At this point I don't know if I will be able to do it, I feel like a failure because I borrowed a family member's money to study here and they have been really supportive yet I couldn't do it, all because my head is wrong. I feel so tired, somedays I wish I can just stop existing.

Sorry to get all gloomy on you guys, I hope you have a nice day much better than mine at least.

EDIT: Thank you everyone for your well wishes and advices, I'm sorry I couldn't respond to you sooner. I took your advices to heart and had been taking steps forward, it's hard but I will try my best.