Hi Crypts, if you don't mind I will consider your challenges which is Borderline and Complex PTSD. I have a feeling the latter is more likely.

The purpose of your seeking therapy is to slowly figure out your personal experiences that caused you to have these issues. All you really did was you developed ways to deal with some kind of neglect/dysfunction/ and abandonment or even abuse and probably things that traumatized you too. So, a part of you did not know "how" to feel safe and you did your best to interact in ways where you felt you were safer.

You most likely have symptoms from these challenges too, and you will need to sit with a therapist where you can both slowly identify these symptoms. The goal is to help YOU better manage these symptoms and also learn how to establish better boundaries with others that can work better and to also understand you have a right to set these boundaries as well. It does take time but the goal is for you to gain new skills that can work better for you, it's not meant to change you to conform, but instead to help you learn better ways to interact in our overall human society where you feel safer and more confident in yourself. This is not even meant for you to wear a mask either, instead it's meant to help you be yourself with more confidence. Also to become more self aware so you can learn how to manage the symptoms that typically present with these challenges.