How to stop

I hyper-fixate on the smallest crap right now and it's starting to get on my own nerves! Like I'm picking apart my relationship and everything I own and my job right now and it's making me freaking miserable but I can not stop. I've tried to emotionally regulate when I notice it but these little things are still bothering me, and it's stuff that hasn't been a problem until right now... and if I'm really just over the life I have right now, how do I even go forward in fixing things?? Like I really just want to enjoy life again but I'm too fixated on all this small crap that doesn't even matter in the long run but feels so stupidly important right now.