Dialectical behavior therapy is the only clincally proven way to cure borderline personality disorder. It involves a variety of journaling practices and thought exercises that are designed to teach you how to keep your emotions in a moderate happy medium, how to put fear in its proper box of context, and how to function in life. It involves learning how to be more assertive, when appropriate. It involves learning how to improve your physical health. It involves learning how to master new skills and hobbies that help you build your sense of yourself as a full, complete person. It involves things that probably come naturally to neurotyical people but that people with BPD need to explicitly be told and taught and need to practice.
I am making so much progress in therapy. The differences in conduct and character from the start of this month, when I was so sad I literally couldn't get out of bed, to today, when I was able to play lacrosse with some degree of spirit and vigor and when I was able to step back into my CrossFit gym, feels very rewarding. I still have a long way to go in terms of my self-development, but today was a very good sign that things are improving and getting better.