I have a recurrent adjustment disorder with mixed depression and anxiety. Usually they are either acute (only lasting up to 6 months after a stressor) or chronic (lasting 6 months or less), and my episodes are usually acute, but they always come back after a major life transition. 

I started noticing it during high school when my parents moved, and then after going to college, I would become depressed and anxious every Christmas break and every summer because I lost my routine. 

Now after quitting my job (among other stressors), it's back, and I almost did something horrible last night as a result. I'd really like to start a community for it or find others who struggle with it as well.

I have a Discord set up, but I could also see about starting a subreddit instead.