I came to college as a shy person, but told myself I would meet people in my dorm. Going in, I was told it was antisocial since I guess it's some new kind of suite dorms where people bond with their roommates and not others on their floor as much, but I thought it wasn't true.
But I kept my door open all the time and always looked for other doors, but people rarely had theirs open and never came by my open one. This has led to me being alone all the time. As a result, I got discouraged and I reverted back to being a shy introvert.
It doesn't help that my 3 other roommates are always out basically from morning until night. I always see other suitemates doing stuff together, eating, haning out in their rooms, walking back to their room together and talking/laughing, etc, and I have to sit there knowing I can't.