I am so sorry for what you experienced.
I am glad to hear that you have found a way to move forward in your life and a better one at that from what you wrote; it's lovely that you have your own family and a clean life now.
I am not an expert in any way at all (just a trauma survivor) but your post did read as though you feel obligated to do something for other women, yet you feel fear about what will happen when this all comes out. All of these things are completely understandable.
Is there any support you can get around this to help you unpick your thoughts? Do you have access to counselling via Employee Assistance and / or the GP? Or Pvt medical if you have it as NHS waiting lists can be long in some areas.
I really am not an expert but I am so sad that you are so stuck in this place where you are rightfully concerned about the impact on your own life but also feel obligated to do something to assist the other victims.
I don't think it's healthy for you to carry that guilt. They have their cases and they need to walk their own journey. I don't think you should be pressured into making a statement unless you feel ready to do so in your own esteem. I think you need to be given the time and space to figure out what these new cases are bringing up for you and you should take all the time you need - hence me suggesting therapy. Perhaps you will land in the same place - that you don't want to upturn your life. Perhaps you will be motivated to take a different path where you do in fact file a case against your abuser. Neither option is wrong in my view.
I do hope you can get some help to navigate this.
Also wanted to say that your drug use does not make it okay that you were abused. You didn't deserve that.
You also don't deserve to be pressured in any way - in either direction.
I am not sure if this post makes any sense or is any way helpful but if you can't already tell it resonates for me on a personal level with many similarities.
Sending you strength as you navigate this. I hope you have access to better help than a random on the internet.
Sending you best wishes.