I am not sure how common it is, but sometimes even when I am doing my interests/hobbies, I still feel not entirely happy. 

I have noticed even at times I am doing supposingly dopamine-releasing stuff, like physical exercises, my mood would still feel troubled.
eg today I have tried to do ice skating, which is something I normally enjoy. I was on ice for ~2hrs doing really good spins/jumps/technical components (I didn’t even hold any expectations before that), after the session I still feel not completely relaxed.

So I have decided to turn to Reddit, hoping to know if you are in a situation like me, what can I try to do?