Trying to change for the better

Hi, I'm Sarah and I'm 18. So I've had MFP for a few years now, but just used it off and on. I suffered from anorexia for two years, and as I recovered I continued to gain extra weight. I'm not obese, but I'm still very unhappy with my body. My eating habits are terrible; I'll starve myself one day and eat a ton of junk food the next. I'm tired of feeling miserable and know now is a great time to turn my life around. I'm a runner and love to workout, but my downfall is eating healthy. I could use any support there is and someone to hold me accountable to stay on track. My main goals are to lose fat and build muscle, but ultimately just become as healthy and strong as I can.