Answer: Masturbation is a normal and beneficial activity for teenage girls to engage in. My advice to you therefore is to masturbate. Explore your body and enjoy it. By not masturbating you are probably doing more harm than good.
During puberty, most girls, and boys, experience strong sexual feelings that they have no control over. It is a normal part of being a teenager. Instead of fighting or ignoring these feelings, please explore them. They are going to be with you for many years.
If you want to enjoy partnered sex, you need to understand your body first. You do this in part by learning to masturbate to orgasm. Please read the pages about Virginity in the section about Vaginal Intercourse.
Many teens experience the same feelings, sensations, and guilt, as disclosed in numerous questions and answers featured in the Puberty Q&As. Many girls experience feelings of guilt after masturbating, at least until they learn other girls masturbate too, and share the same feelings, as frequently disclosed at our sister website DoubleClickHeaven.com.