IAMA 30 year old virgin male. Please help!!!

I am almost 30, male, straight and still a virgin (almost - I was homosexually abused by an older kid when I was 8 years old). I have had two girlfriends, each for 2 years. Neither has been willing to sleep with me. The latter one, after two years, decided to lose her virginity by cheating on me with a colleague and then breaking up. It has been a year, but I have not gotten over my depression despite intensive counseling.

I come from a culture where a man is not considered a gentleman if he makes a move on a girl. I was fine in my own country, but now I am in a place where my friends (both male and female) keep talking about their sex lives and it depresses me even more. I do not have the skills to seduce a woman, and am unsure what to do even if she seems interested in me.

Please talk to me; I am very depressed, and do not want to die a virgin.

[Edit] I do not want to admit that I am a virgin to my friends. People here won't understand and I will probably become a laughing stock