How can i discreetly get help?

ok, so i've seen a counseler and i'm on meds for bipolar, recently getting off meds for deppression. and i cut myself, deep and bad each and every time... and my best friend keeps telling me get help.. get help.. but i made her swear not to tell anyone not even my parents... but i had been good aout it for a month, and didnt cut.. and then i started seeing stuff about self-harm and i've done all of it, from burning, hitting myself too trying to OD.. I think i have a serious problem but i don't know how to get help without going to a mental hospital, Lately it seems everything is going wrong, and my lasts cuts have just healed, and i'm thinking if i don't get help soon then i might slip back into it... does anyone have any suggestions on how i can get help for this?