Omg, go lose your virginity.
i am also facing the same issue. pls help me on this.
As long as you have a girlfriend, try to get away from masturbation which may be grabbing most of your sexual energy. Then when you are with your girlfriend, you will have more enthusiasm for intimacy. Be sure to engage in plenty of foreplay, but intercourse doesn't have to be first on your list. Enjoy manual and oral sexual methods.