IslamicAnswers.com: Islamic Advice

Asalam o Alikum,

I'm not sure where to start from and what to share, either my complete story or my recent happenings, I'm Muslim girl 24 years old, pray 5 times everyday and recite Quran everyday too but I can't give up my habit on masturbation, I have almost stop eating anything and few days my only meal for a whole day is based on few cookies. I used to watch porn and joined some chat rooms where I used to do role plays with guys and make myself comfortable once but then I realized my bad doing and give up on everything and say my Tawbah, I almost imagine myself sleeping with many guys and now I'm sick of it, no matter how hard I try I can't get rid of my feelings. I know the best thing for this situation is to get married but I can't get married due to many reasons one is due to my studies, I don't masturbate everyday but the horny feeling never left me, I divert my mind to many things, say my prayers immediately but sometimes I became so frustrated that I do it again. Now, for the last few months I can't sleep at night, few nights all I do is cry and cry for asking peace to Allah but it's like he is not listening to me or he just abandoned me for my doing but why? I can't concentrate on my studies, I have been one of topper but from last few semester I'm not doing pretty well, I try to be good and do every best I can do. I don't understand what would I do, my life is all wrecked just because I'm horny? I stop watching porn long time ago, I stop doing role play, I never fool anyone, I don't lie, I never try to bashed myself to guys, I'm doing every good I can think of but still my life is all pain and I don't know what to do. I need serious help, please help me out, I'm in great pain that you people will never understand. I can't find peace and I need peace!