I wouldn’t put this all on your experiences from a two year period from decades ago. It’s probably just who you are.
I think it’s important to frame it this way in order to empower yourself. If it’s just who you are, then you can accept it, adjust the way you live, and even alter your perspective enough where you don’t feel weighed down anymore.
But if it’s an injustice that happened to you far in the past then you’re a victim and you just have to deal with it because you didn’t get lucky.
Many people don’t want to take my perspective because it sort of sounds like I’m saying that some people deserve to be bullied. I do think it’s true in a way, but then I’m not one who thinks life should be fair.