It may not be you that's the problem. Are you buying into the unrealistic or misguided goals and standards of others?
I can sort of relate. How to put this tactfully... I tend to want to isolate due to a basic difference in worldview, interests, and how people should interact. There is much stupidity and assholery in the world out there. It get tedious going along and disregarding all the crap just for the sake of being polite.