From my own experience, the best way to get better in the long-term is really work hard on yourself in and out of therapy. For me that meant going to therapy for a number of years, and forming a better, more positive relationship with my therapist to compensate for the abuse I had from my parents. It also meant working hard on developing new friendships, hobbies, and a career, with my therapists and with my few existing friends' support. All of these were new things to me and very challenging at the beginning. But I succeeded and things are going much better now.