I think I'm a waste of space
Why would you call yourself that?
I'm fat and ugly and no one likes me
You shouldn't think so low on yourself. You should work on the things you can change so you can have more confidence in yourself.
I can't even seem to focus on work but I have to quit my job, my manager is a moron.
I think that you need to build yourself up more. You need to build up that self confidence. It is bad to think of yourself as nothing.