Smurf, I'm really sorry you are going through this again. For what it's worth, we do believe you, your descriptions are too vivid and true-to-life to be made up. You've shared a lot more than usual here, which is a good thing. It helps us to understand and relate, which we otherwise could not do, given the extreme extent of your abuse.
Since you've been through this cycle before, you know how it goes. As you approach the anniversaries of your assaults, or have contact with your abusers, or are traumatized again, that lets loose the negative voices in your head, which then have a field day.
On the one side is your intellect, which knows the truth and that you have been honest about it. Also your sense of justice, which knows that what's been done to you is an incredible injustice, that can't be excused or justified in any way, regardless of what your abusers or the voices (which are their surrogates) say. And those aspects of your thinking are absolutely right, Smurf. No question there at all.
On the other side is the damage that's been done to you, and the many instances of unjust treatment you've experienced, that imply you have no value, and are worth nothing. Those aspects of your thinking are artifacts of your abuse, and are absolutely wrong, Smurf. Without question, they are an echo and a continuation of your abuse, but they are neither real nor right.
So I wanted to emphasize this, Smurf, even though I know you are smart enough to be aware of it. And to remind you that you do have value on this earth. The world is better with you in it, so we want you here. Your value is intrinsic to you and cannot be diminished by others, no matter how unjustly you are treated. Your intellect knows the truth, Smurf, so you have to hang on to that as the only thing that is real and right.
The rest is BS that I wish to God, had never existed and could be erased, so that you'd have had a normal life and the opportunities you should have had, to be happy. There is still opportunity for that, Smurf, if you are still here, and if you reject those voices as the trash they are.