(Sighs)..Hurt by 2 Men..and Not knowing who to Choose..What should I do? ><?

I refuse to tell my age because you will tell me that I shouldn't be dealing with this kind of stuff at this age and to just live -.- So Just pretend this is you.....Well..I was Dateing this man Named Scott (21) and we were together for 7 Months and they were the happiest times of my life...I use to smile for no reason around him..and I would just get lost in his eyes...I didn't care what anyone thought..We loved each other...(sighs) Well he is bipolar and I had to understand that and live with it while we would fight because most of the fights he started but didn't mean to because of his illness..so I just let it go...Well he has 2 Kids with this Girl named Ash...and His kids use to cry because they wanted there Mother and Father back together...So I let him go..v.v..Because I know how his kids feel...So he left to go to ash..But...Instead of going to her he went to this girl named Sabrina..v.v..and When I saw them together I broke into tears and Ran away..Home..were I almost took my life but my best friend was there when I saw them together and he saw me run away even though nobody else did..And he stopped me..And he has been helping me through this heartbreak..All this pain..But then Sabrina and Scott broke up and he came to me in tears Saying "I'm sorry I went to Ash and she Turned me down and I was ganna go back to you but Blake (My Best friend) Yelled at me for hurting you..and My illness turned me towards Sabrina..Please take me back i'm sorry"...I told him I would think about it..But then of course Blake asked me out about 2 hours after...I do love Blake but not as strong as I do Scott. But I doubt I will ever love anyone as much as I do Scott...But that is more like a promise than anything. But Blake has a bad history of cheating and I don't know if I could trust him with my heart..But I don't wanna get hurt by Scott again =/ But everytime I close my eyes and Think All is see is him and feel is him but that is also followed by pain..(sighs) This is all topped with all the other stress of my life..Friends In love..Friends Breaking up..Father Yelling sitting on the computer chair all day unemploded...Me haveing to Clean the house and Raise my Younger Brother..I Need help..Please Help me..