> I can't take this situation anymore and this is a cry from the heart.

> I am so frustrated right now, I don't understand why everything takes so long, this process is unbearable.

Meta advice: if I were you, I'd take a break for a few days and focus on getting your feelings about this back to a calmer, constructive, cheerful place.

If you're not sure how to do this, I'd say: start with vigorous exercise every day [1], do things you normally enjoy, and consider mindfulness meditation [2].

[1] http://7-min.com/ is a good quick fix.

[2] https://www.headspace.com/ is good and free for a beginner.