Childhood can be very rough for some people. If you are different in any way other kids can be mean to you. If the adults around you don't help then you have to just hope to grow up and be strong. I think that it's often the case that it's not so much that the adult doesn't care as much as they don't know what to do. Also teachers are under educated and way overworked.
So-- you know that you were emotionally abused. It's very painful to have those memories. But what can you do about it? I know very well how hard it is not to think about all the bad things. Thoughts seem to have their own life and we are helpless. I see you post here a lot so I'm sure you already see a professional and get help so I won't be redundant.
Try an experiment. Try to imagine what it would feel like to forget all the bad things. How would it feel to be happy. Everyone has the experience of happiness in them. Otherwise how would we know what is missing in our life. Try to imagine being happy for just a few minutes. Kind of take a vacation from the negative by giving attention to something positive. You can't change the past and you have every right to be upset about it. But you are letting those people make you suffer all over again by remembering. I know how hard this is. I've been working on it for years but it does help. The good feelings begin to build up until they are greater than the bad feelings.
I hope you feel better soon