How to say sorry to a girl when you annoyed her? ?

I met this girl like 2 months ago in a party, and we had a great time gtting to know each other since then, i went to her debut last week, and we really had fun, i talked to her parents and had a blast dancing and getting to know each other even more. But in the past week, she hasnt been responding to my texts or ims, shes always busy... I got desperate, and started saying sorry for anything i have done that annoyed her or bothered her, i kinda went overboard with that. I know in my heart, I would rather hang myself that to hurt her so, i was worried about her. So now im just giving her major space, when i found out i was the reason behind this, she is permanently offline to me in ym also. PLEASE HELP