I Had My First Sexual Experience Young

When I was in 6th grade I was living in base housing (my father was in the military), I was playing on the play ground and I heard some older kids talking about jerking off. I was interested and listened in. A couple days later I gave it a try, it hurt so I stopped and didn't think about it anymore.
A few weekends later I saw one of the guys who was talking about it. I asked him if its supposed to hurt at first. Oh course he made fun of me for being stupid then I asked him if he was so smart, how do you do it then? He explained, I told him that's what I did and it didn't work. He again made fun of me and said I was doing it wrong so I told him to show me. We did the back and forth "I dare you, are you chicken route" so he took me over to the tube slide, pull it out and started to pull on it until it slowly got hard in his hand. I wateched for a moment then tried to follow along. After a minute or so I said it wasn't working it still hurts, how are you doing that? He said "like this stupid" and being to stroke mine until it got hard in his hand, I was hooked. I probably did that to myself 3-4 times a day for months.