I’m so miserable and I don’t care about myself anymore

I’ve been completely clean for maybe 2.5 weeks. I thought I was doing okay, and then randomly I started feeling shitty again. That was a few days ago and I’ve felt fatigued and hopeless since. I’ve been taking my medication and a shit ton of supplements but nothing has improved yet. I wish I could take my stimulant medication for my adhd but since I’m in treatment I can’t. I’m immune to caffeine so even that doesn’t perk me up. I’m angry, hopeless and tired constantly. The one thing I can think of that I would make me happy (that isn’t drugs) would be a partner but the dating pool in my area is really bad and I’ve had too many bad experiences on dating apps. I don’t even think anyone could take interest in me while I’m like this or even if I get better. I feel so alone it feels as if there’s no reason to even improve. It’s really hard to keep going when you have no one to impress and you don’t care about yourself