I think I started experimenting later then everyone here. Hell how the heck do you remember what you did at 2, let alone know that you started to playing with yourself.
I don't think I really started to play with it but lightly till I was 10. I think wet dreams came slowly around 11-12. Somehow I was sheltered sexually and didn't understand masturbation till 13. Even then I failed at lubrication. Found myself stroking till I was raw and still didn't come. Not good . First time I came I used an old soft shirt and used it like a buffing towel when you polish your shoes. Then I discovered after reading...lube, natural and synthetic. Rejoice!