This is my take on my behaviour: I want to blend in and not be noticed. I find it absolutely humiliating if I stand out. So I opt for hiding in plain sight - I taught myself social skills and how to act extraverted, confident and social. So no one sees what I actually think and feel for the most part. (I had help getting to this point from two things - 1. my family was quite controlling and we had to act a certain way all the time and I learned to hide things to keep myself from feeling worse and 2. I have bipolar 2, so my hypomanias make me a lot more social and confident. It was a lot easier to learn to fake THAT than it would be to hide it!)

What did you major in? It's ok to take a break before doing your Masters, but you can totally still do that once you're feeling better.