I have bipolar and borderline too and have also had my share of bad experiences with therapy. I'm 50 now and i've given up. I tried two DBT day hospitals. One i quit and the other made me manic and they kicked me out. I've looked over the DBT self-help stuff but it seems like a bunch of mnemonics. It would probably be helpful to learn them but i don't have the patience. My life is good enough the way it is.