It's very easy to feel an outcast, but I think it's important to remember that no one in the world really conforms to that normality. Everyone has problems and no one talks about them regularly as doing so would break the "normality" they've built around them.
I think the best way to define your life, if you're already financially stable, is to pick up a hobby or work that you're passionate about. It can be as
divergent and mundane as you want just so long as you dedicate enough of yourself to it that you can be proud of what you create in the end.
Writing a novel probably works for you.