Thanks for replying. Unfortunately, the situation is very complicated.
@darkfeary, I know I need rest. The problem is that if I want to continue with my studies, I cannot afford a break. Timewise, I have one year to go to finish my bachelor's degree so I really don't want to lose the time I already invested into that, Taking a break from the studies is actually very complicated since I'm retaking two courses now. Last time I was suggested a break (had a temporary physical health issue), I was told that I'd have to retake the courses remainig, not to start them from scratch. That would mean that I would actually fail them when taking the break. And now, I cannot fail the two courses if I don't want to drop out.

@CANDC thank you for the ides. I must say that I have to keep searching for more, though. I don't want to say that yours are bad, but you know, everything is individual. I know that yoga/meditations don't have much of an impact on me. I have absolutely no time for volunteering. And other things are my usual behaviour, no matter how I feel