As far as I know there is no prohibition in the bible for women in regard to masturbation, since you are not spilling "the seed". However since it is disruptive to your daily live, you may want to talk to your pediatrician. There are some medication that can help you with your hyper-sexuality. On the other hand, I would not be too concerned. It is in no way dangerous to you and if you keep it quiet and private, there is no harm being done,
Try to keep your mind occupied with other, more productive endeavours, stay physically active with daily exercises, and try to keep this to a minimum without worrying to much about it.
Masturbation is a perfectly normal activity in your age group. Good luck to you. :)
http://m.psychologytoday.com/blog/the-heart-addiction/201103/breaking-addiction
I wanted to add that i am not promoting the book. I have never read it. However, there is sound logic there. The overriding message is to understand what generates each emotion in you.