i want a better me

I just dont seem to understand myself. I plan everything out then when its time to do it i flop out. i need help. i need someone to stay on my ass like in extreme makeover weightloss edition. i'm soo lost.......

ok. i have tried dieting, walking, working out, and dietary pills. I get into the swing of doing good then life brings me down and burries me back in my hole. My self esteem sucks and my confidence is dwindling extremely fast. my boyfriend has been getting on my case about my weight. i know he just wants better for me but the things he says hurt.  i've been so stressed and depressed about myself it isn't funny. I dont even have a support group, which is why im here. i need som