not to contradict you, just mentioning it:

well i do mind working a lot because it drains my body and i get really really bad sensations after an exhausting work day, including the feeling that everything is shit and such. idk, it's probably only me, but there is people who struggle with work, independent on what kind of work it is. it's literally the exhaustion itself that does it.

though it's good if you made that decision for yourself. doing community service definitely does help the world, especially your local community :)