I don't think anyone should judge you. This was your *personal* experience. Nobody has the right to tell you how to feel about this. Someone else mentioned "abuse industry" in here. I agree with that thought, to some extent at least. You did say your first experience was horrible but you went back. Do you know if you went back because you enjoyed the attention he was paying to you or because of the actual sex acts becoming more fun? I'm not questioning your motivations, just curious.
Nothing sexual ever happened to me as a young kid. I am pretty sure I would've enjoyed some things when I was as young as 10 or so. I don't think I would've enjoyed getting fucked (still not a bottom today), but if an attractive guy in, say, his 20s would've wanted to kiss and make out and do oral, I would've loved it. I mean I looked at gay porn as soon as I could get my hands on any. LOL. I have a friend who had sex with his uncle when he was a young teen. He still relishes the experience and he doesn't feel abused in any way. It hasn't made him into a predator or pedophile either (in fact, he's a bear-lovin' bear). So, everyone's experience is different.
That all said, I don't think we can conclude from this that age-of-consent laws need to just be abolished. Their reasoning should be that children don't have the capacity to give informed consent to being sexual with an adult. I will disagree with anyone who says otherwise. I mean, this is a forum with a lot of discussions about HIV and other sexually-transmitted diseases. Far be it from me to tell an adult he can't be an informed-consent bug chaser, but does anyone honestly believe a 9 (or 10 or 11)-year-old has the capacity to decide it's OK to have sex and, for example, take the risk of contracting an STD?
Again, I don't want to tell anyone who has a sexual experience with an adult when they were a kid that they were abused if they themselves don't feel that way. Far from it. There is too much misery in the world, why artificially create more? But, just because some people had a good experience doesn't invalidate the whole idea of consent.