I was a terrible waitress. In the kitchen, other waitresses would pick up my hot plates for people at their tables. I spilled milk on a customer who yelled he would sue me. (I knocked over a creamer on the table.) I ended up walking out the door. Other waitresses told me I needed to grow thicker skin. It wasn't the right job for me at that time. So I left and did other things and floated around from job to job.

I'm sorry you are going through this. It is very painful. Know and remember one thing. If you weren't doing enough work, they would fire you in a heartbeat. So you must be holding your own. Still, it hurts to not be respected by supervisors and co-workers. How long have you been at this particular job? I ask because it does get easier after about 6 months. If you are there less than that amount of time, don't judge yourself by how you are doing now.

You do not have people in your corner rooting for you, which is awfully hard. Your decision to have sex was your decision and you need to own that. I'm sorry the relationship ended, but you can't make your ex responsible for everything you did with him. It's hard to be so alone, I know. Is there any chance you could go back to school?