I screwed up my chances

There's this girl...lets call her Bella. Well, I remember that the majority of my life has been full of pessimism and sadness. I'm 16 so I guess it's not that bad, and life especially wasn't bad when I met her. I saw her in 8th grade, but I didn't have feelings for her (or I guess anyone) until my sophomore year. I slowly fell in love with her and took the lowest lows that year. I endured a rejection by her and went through two douchebag boyfriends and stood by her side. I loved her. Well, one night I went to a concert with my friends and I texted her on the train ride back. She told me she loved me. I was so ecstatic, and within the next two weeks she broke up with her boyfriend. I meant so much to her, but then summer happened, and we haven't seen each other since. Fast forward to July where she stops texting me. We don't talk for about a week and a half. We talked everyday for probably 7 months before that. She would always try to call me or text or IM. I freaked out on her and without getting too personal, I fabricated a scenario in my head and I yelled at her. I freaked out on her because I was afraid I was losing her. Now she won't talk to me. We haven't talked for about a month now. Schools next week. I can't stand to see her if I know that she doesn't love me anymore and that I can't be happy. She makes me happy beyond imagination. Thanks to her, she has cured my depression. But without her I can't bear living. I'd do anything to have her forgive me, but I'm guessing its too late. I've texted her about 25 times with no response, telling her how much she means to me. I guess my question is: what should I do? Can I repair things?

I personally think you talk to her when you see at school, im going to say your only 16 you don't know what love is because thats not true you may love her but if she does not like you anymore or is angry with you but doesn't forgive you, then you leave her alone give her abit of space and see if she wants you back if not then i would suggest you would try looking for someone else who makes you as happy as she did. right now it would seem noone could make you as happy as she did but my friend there's always someone out there i thought the same as you until i met someone else :)