>>108448I think I make it sound grim but this is not something you have to live with forever. You can still change.
I think that the reason why you still find yourself in situations where people treat you like trash is because you attract such people who love to take advantage of that.
If you have low self-esteem, dignity and self-worth, and you display these insecurities outside, knowingly or unknowingly, then this is what people will see as well.
People who don't like those things would stay away, people who are indifferent to it wouldn't care about you, and people who want to fix you [and fail because they can't and they're not qualified for it and eventually leave], or people will take advantage of these traits. They abuse you because you tolerate it and they can get away with it.
So once you start working on these things, and start to display positive traits, then people who admire those traits will be attracted towards you.
Regarding past memories where you were abused or bullied, there are ways to deal with that too. We are made up of our memories, but we can rewrite them by convincing our mind that something different happened. You can imagine that you're traveling to the past and then helping the younger you to fight against the bullies and assure yourself that you're there to protect her, or you can write a letter to her asking her to stay strong. There are other things that you can do.
It'll take time, but in the meanwhile don't get into these shitty relationships and hang around idiots. You're just opening past wounds over and over again if you do that without even letting it to heal.