Chiming in with an anecdote that aligns with yours. I've never used antidepressants but my sense of self-confidence and "happiness" is so highly correlated with my level of mastery and control on my life progression that I now ask myself the same question when I'm feeling vaguely bad: "what is going on in my life that I have the ability to improve that I do not like?", and I fix the first thing that comes to mind as soon as possible.