The good news is that it is possible to undo mind control. It is possible to undo the dependency on narcissistic parents and choose a life that you want for yourself.
The way to do this is to learn about mind control, the techniques and methods used on you and what effects you personally suffered. Understanding these things means they no longer have power over you and it releases you from the fear and guilt that were used against you. Professional help is invaluable here.
It’s not your fault
This is a big one! It is important to learn at a deep level that the problem lies with the narcissistic parents. You were unfortunate to be born to such people but it’s not your fault. And everything that they blamed you for (which will be everything because a narcissist is never at fault!) was a ploy to control and dominate you. Nothing more and nothing less.