Is it normal for a Christian to masturbate and what do you do to not think about ?

So I am a Christian and I am trying to not to have until I get married, but (for the guys) you know how hard it is to control this envy. And like every guy, I want to have so bad, but I am fighting this envy, and rarely I masturbate to appease myself, and I feel terrible about it. I have tried to stop completely but the longest i could hold was 3 months without masturbating, and on top of that my uncle have with a lot of girls and he keeps telling me how good it feels. Is it anything I can do to think less about and to stop masturbating?