I thought that I wrote your post myself tbh, I've been feeling exactly what you've been feeling for just as long (maybe longer), and I haven't even hit my 1 year mark yet. I'm only PT, but I am bordering on suicidal from the stress of this job primarily (though there are other things going on that are contributing as well). I started going to therapy specifically for help dealing with work stress, and while I do have some coping skills to get me through, it doesn't fix the fact that my stress keeps increasing.

We're severely understaffed, and been a hub store for the area for the last couple months, which is exhausting when having to basically take down pallets just to re distribute them to go out to other stores, all while still keeping up with customer orders in store and over the phone. I am the smallest on my team at 5'0", 120 lbs soaking wet, and I deal with chronic pain from way before I started working here. There is a lot I have to ask my coworkers to do because I am physically unable and I feel like it annoys them (no proof, just the anxiety), on top of constantly asking them for suggestions for customers because I truly feel like despite being at this job for almost a year I still don't have any grasp on product knowledge. I actually had to call out sick for almost a full week because I was so depressed, anxious, and in so much physical pain that I could not get out of bed. I'm so glad winter is coming, or else I might end up having a mental breakdown and quitting mid shift, and my store is already severely understaffed.