I have had a really rough couple of years with some career difficulties and transitions that really affected my confidence. I seem to have become really over-sensitive and I am not sure how to fix it. Any small criticism feels like a huge attack, and I often build things up in my head into something that they really are not. For example, a few weeks ago, I got to work (I work in a school) and the secretary was standing at the door waiting for me, and the first thing she said was "I need to see you in my office right away." In my head, I immediately panicked thinking I had done something wrong, she was mad at me and I was going to be fired. It turns out that someone was going to be late and they needed me to fill in for her for an hour, and she was waiting to tell me so she could go onto her other work and stop watching for me to arrive. Even though I rationally understood that there were any number of non-tragic reasons for someone to call me into their office, my first response was to panic and think the worst. As a result, I find myself spending a lot of time needlessly worrying

I need a thicker skin. Any sugggestions?