Can't get a moment of peace

I've been on the verge of actual tears almost constantly for the past week because I'm so stressed about how I can't find comfortable shoes or underwear after months of looking, and there are always little things bothering me. I've also been on the verge of a mental breakdown about how I'm not sitting jn my chair properly or setting it to the proper height, or that it's falling apart and I need a new one.

I've never been diagnosed with OCD, but I feel like I'm literally unable to continue living or ever be happy due to this. I only have brief moments of happiness when I'm distracted from this, and it's always there in the background even when it's at a low level.

I'm gonna need to shop for a bunch of new stuff eventually and I expect it to be borderline traumatic. Not looking forward to that. I have almost no money, so it's not like that's soon anyway. For better or for worse.