Tired of being horny

Bruh idk why im constantly so fucking horny, sex is on my mind constantly it gets so bad that in class I have to put my head down and literally force myself to cum hands free just to only get horny again 30 minutes. I don't even know why I randomly hit puberty and began craving sex constantly, I feel like P.Diddy except I don't diddle little kids, its so shameful being like this how do I stop it?