Revolutionary optimism and trying to keep my life in order so that I can say I'm contributing as much to communism as I possibly can be has done orders more for my mental health and lifestyle than anything else. Years in therapy as a teenager gave me nothing but therapyspeak and self loathing; having a strong basis in theory and striving towards political actualization has made me friends, drawn me to fulfilling work and given me passion for learning skills and hobbies.
So I do absolutely agree, and have had similar thoughts to you. You can't say you truly want everyone else's lives to be better if you won't even do the work on your own.
(Note for above, I'm not dismissing therapy as generally beneficial, just that my experience was subpar and was not as helpful as empowering myself with theory/learning the true roots of my struggles)