Weird off mood, insomnia, missed meals

I've been feeling really on edge recently, really deflated, really off, sometimes jittery and emotional, sometimes I don't feel like getting up, sometimes I forget or can't be asked to eat anything for a few days, I'll maybe get up in the afternoon to make a frappe though, I try to branch out and make new friends by joining dnd servers but the ones I've joined I don't feel are clicking for me, I tried to get back into an old hobby (art) but I find myself impatient, although it gives me a temporary sense of pride, I try distracting myself in the evenings because I can't sleep, my brain is too loud at night, by reading manwhas on webtoon. I dunno, this will eventually pass, but I just thought I'd make a post to get it off my chest. I don't know why I can't just feel content, relaxed and happy.