Its kind of a difficult question, for guys only!?

Alright...so in 7th grade(im in 9th now) i discovered what was and in 8th grade i started the . I d occasionly then, but now its more often. Kind of excessive, 1 or 2 times daily within an 8 hour period. That night i feel okay, but the next day i feel like im in a haze, or a dreamy like behavior almost. I have big tests ahead, and need to be 100% there. I also found out masterbaition was a sin, and i want to stop it for good. If i stop it, do you think the behavior will go away? If anyone has been in this situation before, then please answer! thanks