I always ask what I didn't wrong and how I can be better with certain people. I realize it's not me I get tired of biting my lip and walking eggshells. I learned to walk away because no matter what I do things will never be right or be good enough.
I just tell myself not to treat others bad because I know the feeling. I've apologized even though I didn't do anything wrong. I'm over those people holding a grudge. Once you cut the cord you are free.
Avoiding those people can make your day better say hi. And that's it since you don't need or want anything from them. It's gotten easier because you know others know your hardwork and effort made.
Forgive yourself because life is too short to let people who don't like you bug you. People you don't talk to rob your inner peace. Be better without them it's the best move to make.