Manic depression, anxiety, suicide...?

im 15, have manic depression (bipolar), anxiety and thinking of suicide but i just cant do it because i think its just wrong, but i feel trapped and stuck living the way i do with no one to talk to who understands me and my problems, and i went to a group meeting with my dad where the ppl there have multiple disorders and when it was my turn to talk i didnt say anything because i wouldve started crying and just letting everything out that ive held in for years and somehow i just cant force myself to do that even though i want to let it all go. I also have a sh*tload of stress and school and all my other issues arent helping anything either.....what can i do? real help please...