If you grew up in a toxic family of the type you're describing it could be that the hardest thing is to realise that as an adult you can do whatever you want. Sounds obvious and easy but can be really hard to internalise and act on. And it's the thing that matters most, because once you do have the feeling that you can do whatever you want, you can figure out what you want and do it and live a happy life. It will probably not happen overnight but rather over a long period of constant work, so find what you need to help you on this journey (therapy sounds like a good idea, just make sure that you are working with the right therapist).

I would ignore anyone telling you that your experience doesn't qualify as "rock bottom". You know best. What it really means is that you feel you've suffered enough and you're ready to do the work and move away from suffering and towards happiness and self actualisation. Even if it doesn't feel like that right now, this is a very good place to be.