Masturbating since i can remember

I can't ever remember the real first time I actually masturbated, but I do remember I did it a lot. My earliest memory of it was when I was in 2nd grade or when I was 6-7 and all I knew was my... boyhood got hard and if I rubbed it it long enough it felt good. I didn't even know what made it hard until I was about 8. Then I found out I loved boobies cause my third grade teachers neckline always hung low when she would bend down to help me do my math stuff in class and I would just stare down her shirt (honest). The first time I measured myself too was in 4th grade (4 1/2"). But I never remember stopping or taking beaks or anything and the longest time period I've gone without it is 12 days... But that was once and besides that week and a half its been every day up to three times. Yeah it hurts at that point so then I stop. But I'm 25 now and I've NEVER had a wet dream basically cause I've never stopped masturbating.... Normal....? :/