I'm too f*cking angry and filled with hate.
I don't think there is such a thing as being "too" angry. It sounds like the anger you
are experiencing is overwhelming, and distressing. But there's no maximum amount of anger that a person is
allowed to feel. Anger is our brain and our body's way of sounding the alarm that an injustice has occurred. And it sounds like that is exactly what this is: an injustice which was perpetrated onto you, by the adults in your life who were supposed to protect you and care for you.
In my own therapy recently the word "betrayal" has come up, and I am not someone accustomed to recognizing the impact of being betrayed by others. To me it is illogical, and imperceptible, because my child-like processing cannot determine why someone would behave in such a way unless they were psychologically deficient. (Ultimately, this may in fact be the truth.) And the fact that someone
did cause me harm, does not seem...
relevant. It just is, why should I care that I was hurt?
The idea of being angry at my abusers is unfathomable, because for me, it is akin to being angry at a tornado for razing down the house. As though my abuse was simply a natural occurrence, a fleet of the weather. But you have already overcome this barrier. You see that there is injustice, unfairness, cruelty, betrayal. All things worthy of anger (though you do not need to meet any arbitrary "correct reason for anger," either).
Fortunately, there are methods that exist that can improve build your tolerance to enduring these emotions, so that they do not cause you as much distress. These are techniques you can learn online through dialectical and physiological regulation. I find "STOP" and "TIPS" from DBT to be particularly helpful, and I use some behavioral modification apps like AIMS to cope with my destructive and aggressive tendencies.
I've found the most significant coping mechanism in the moment where I am so angry I could hit someone, is humor - so I've loaded my phone with a lot of memes and screenshots of funny things my friends have said. I also do my best to keep my body as still as possible, and I commit to not taking any action until I am confident I can control my behavior. (This may or may not apply for you.)