1) Beauty can be pretty subjective. Especially as you get older. In high-school people are more likely to follow the crowd because people will put them down if the express desire for anything outside the societal standard. There are individuals who desire ALL sorts of different people.

2) No reason for anyone to ever be embarrassed of virginity or a lack of partners. Some people just can't emotionally cope with sex outside of a very trusting and committed relationship. It can be very detrimental to their mental health. If someone thinks you are less than because of this... Well, they have a serious problem.

3) The sexiest thing for healthy people is forward momentum. Take this time while you are not in a relationship to prepare yourself for life and an eventual relationship/family. That means working on your future career, mental, and physical health. You will still probably feel lonely, but it speaks volumes about what kind of person you are when you go forward anyway.