How to not feel guilty about masturbating, church of england, (anglican) ( protestant) questioner?

OK. I'm a Christian, a protestant and part of the church of England, an Anglican. I'm 14 and love God and worship him and everything, but about six months ago I masturbated. I've done it about eight or so times since then but have currently stopped. My questions are should I masturbate and if so how do I not feel guilty about it, because I feel guilty especially ti God, so religious answers would be greatly appreciated. Thank you very much.