Personality disorders are hard to treat. Medication doesn't fix it, but only helps with some of the symptoms. If you are motivated to change your life, then I believe you should be able to get the help and support that you need to get better. It is a hard road though. Can you request a different therapist who has better experience treating personality disorders? Maybe take some time first to think on what you would like to change, and go in with some goals of your own. Learning how to be in relationships is usually a pretty big part of treatment for personality disorders, so that might be a place to start.

It seems fairly typical that it takes a lot of years to start getting the right help for personality disorders. That is because other symptoms are more obvious, and the personality disorder itself might not emerge right away, as it seems more like a part of the way you are, as opposed to symptoms like depression and anxiety that are more easily recognized but don't stay under control when the personality disorder isn't addressed.

I really hope that you can find the help that you need to make a more satisfying life for yourself. Keep trying until you do.

Rap