Interesting people are everywhere and nowhere. You find them one by one.

Feeling alienated sucks but you might find that not belonging to just one group is one of your strengths. It can give you a unique perspective because you have a wider range of experiences. It can also increase your tolerance for change and uncertainty. People that stay in groups tend to want things to stay the same and you don't meet interesting people in Berlin or Beijing by staying the same.

And you may want to reconsider your thoughts about psychologists. They are a great resource for figuring out how you feel because they're trained listeners and neutral to your situation. Sometimes you need to try out a couple before you find one that you find helpful.