Society puts a very large emphasis on two things:
1) YOU HAVE TO HAVE SEX NOW NOW NOW!
2) If you aren't having sex, or if you don't look like you will be in the very near future...then maybe...YOU'RE WIERD!
This, of course, is not true. Sex is a wonderful thing when used in the right context. It is a way in which God has allowed us to share in his creating power. We can not seperate our sexuality from ourselves: it is as much a part of us as eating, sleeping, and breathing except for one difference...we don't have to do it to survive (although I am willing to bet that there have been a billion times where we've felt that if we don't do it...like right now we will die!)
sexuality is unique because it effects who we are psychologically, spiritually, and emotionally - this is so because of our humanity which seperates us from the rest of creation, i.e., we are not just mammals: we are spiritual beings created by God to know God. We are sacred. Our bodies are sacred...a temple the Bible says.
Surely, there ought not be a rush to become sexually active or to worry over it if we haven't gotten a date yet, or if no one is interested. You want to make sure you know what you are getting into in order to do things right for God. 20 year olds today are not like 20 year olds 200 years ago. Adolescence now extends into the 30-year range. Basically, at 20, most American youth are still kids! There's no rush! The average lifespan is something like 75 I think. Life will go on if you don't find a girlfriend even in the next 5 years. Instead, maybe you'll actually find a better quality woman instead of another 20 year old kid! Who knows. God takes care of all things. Don't think he'll give up on you here either.
And, at any rate, I know many celibate men. Celibacy is a gift, not a curse. It is something God gives those men and women he chooses the grace to do. Being celibate doesen't make anyone not want sex ever again, it simply means that they are willing to go without that type of intamacy in order to turn their entire lives over to a living, 24/7 prayer to God. It is not the life for everyone. Those who are called to celibacy still struggle with it, but they rely on God's grace to carry them on.
Celibacy or the married life, we are all called to a life of chastity. So no matter where you end up, always keep that in mind.