It took me a while... I was in my twenties.
The issue was a lot of things. I have a lot of anxiety but I didn't know until my mid twenties. So growing up I was always terrified but I didn't know that this was unnatural. I never knew anything but fear so I just assumed that's how everyone felt around everyone all the time.
This gave me a lot of confidence issues. I thought people where laughing at me or making fun of me even when they weren't. The lack of confidence made me kind of a goofy, shy person who looked at his own feet a lot and that made me unattractive. So although most of the people didn't hate me, nobody really liked me either because I was so socially awkword.
Some people did hate me... they kicked me or pushed me into lockers and shit. Yeah, it sucked... it didn't help the confidence and unfortunitly I didn't know enough to realize the few didn't represent the majority.
I had friends but they where the rowdy outcasts. They did drugs and skipped school a lot but I was too scared to join in. They where too busy being fucked up to take me under their wing so they all just went and lost their virginity without ever caring or trying to help me.
My brother is gay so he had no advice, my father worked all the time (awesome guy, love him to death) so he wasn't around to help, and my mother grew up in a small town and my father was her one and only so she didn't know shit about dating.
So what happened is that I ended up being an adult with a serious social complex and no help or guidence to learn what, or how to do it. I don't mean sex... I mean social interaction. Nobody gave me the "talk"... I wasn't aware it was OK to feel that way (remember: Anxiety). So it took me until my mid twenties to realize I had a problem, face the problem, over-come the problem, and then start living a normal life... which included sex.
So yeah, I'm not really proud of who I use to be... some days I'm not even proud of who I currently am.
If you know someone who needs help with girls and such... help them. Their problem might stem beyond just sex and something like this might be enough to get them going in the right direction. I don't blame my friends because it's not their job to raise me, but sometimes I get really mad thinking about how they just left me behind without ever even offering help.
on the other hand, because I didn't do shit like that, I stayed in school, got good grades, went to college, got a degree, got a career... and now some of those assholes live in my basement and owe me their lives. In the end, I think it'll all be beneficial to me... but still, nothing makes a person feel worse then solving the problem themselves and realizing that it's a problem that should have never gotten as far as it did, had one of his friends cared enough to intervene earlier.
This is all a true story.