So, this could be your hormones going through an active period. Masturbation will help. But, try also distracting yourself. You are either newly graduated high school/secondary school or in your last year. So, throw, and I mean THROW yourself into being successful with that. If you are newly graduated, are you in college, in career training? What's going on in these areas because I do find that when I am really busy getting ahead in life, the other stuff like my libido seems less important. Frankly, I'm tired so it can help. Exercise more. When you feel the urge . . . or you are a little out of control feeling because of it . . . go for a run, to the gym and do a class like boot camp, go on youtube and do an exercise routine.
Because what you don't want to do is make bad choices because of raging hormones. Don't be tempted to 'just do it'. That almost always comes back to bite us and we regret it later. Speaking as someone older than you . . . I say that with absolute certainty.
So, distract and do other things. Libido, like hormones, will ebb and flow. And you may be longing for companionship as much as sex. Working on your dating life is fine to do as long as you are really smart about it and find a good guy. Friends with benefits doesn't work. So, look for something meaningful for the next time you are sexually active. That's my best advice.
Tell me what you think or more info and I'll try to help any way I can!