How do you try to find fulfillment if you are different from others?

I realized a lot of advice does not work for me because some people have mentioned there is something wrong with my brain. It has been depressing me for a while because I realize I will never fit in. It is the best opportunity to go my own way because people do not like those who do not understand banter and flirting naturally. But I have seen many people who have managed to succeed despite having something wrong with their brain.