Let's see here, I work 3rd so society already considers me an outcast, live in rural ohio so finding anyone remotely closely aligned may as well be functionally impossible.

Seasonal depression for me ends up being all year. New years, nobody to be with. Valentines day, "look at all these happy couples, experiencing a part of life you'll never be able to have, get fucked loser". 4th of July (seriously, it's the 2nd closest thing to a community event here), I really hate being in large groups of people, plus I just don't care for overpriced carnival food/games. My birthday, it's become nothing more than a reminder that I'm another year older and... oh right I turned 30 this year, well we all know what society thinks of a single man who hasn't ever dated really at all. Halloween, homeschooled church kid so I never had any feelings on it at all, besides hating it because I got to watch other have something and I just couldn't. Thanksgiving/Christmas, I've been avoiding it mostly because my grandparents have somewhat given me the implication that I should've been married and had a kid at least 5 years ago at the latest.

Self care to me just ends up being me continually finding distractions to not ending it in spite wanting to.