Basically what the title says. I am a pretty anxious person and I am often worried that my boss doesn't like me or that I'm not doing well at work or that others are performing better than I am and that I'm the weakest link. Often times it's not as dire as I think it is. But even if it was, how do not put my value in how good of a worker I am? I can concentrate on a bad mark or something my boss said and it can really ruin my mood etc.