21 year old virgin male

I am a 21 year old boy and have never had a relationship with a girl, neither sex. I even haven't kissed a girl !!! I would say that I have a good charakter, am kind to people and willing to help everyone who is in need.I know it is strange to hear that from a 21 year old boy, but I have to emphasize that the nice guys still exist. I had a difficult childhood, because of the fact that I was being mistreated from many of my classmates. In my last year of highschool I fell for a girl. She was really nice to me initially, but because of me being shy, I was rejected from her later on. After successfully accomplishing the third grade of Highschool I was given the chance to attend a trade school in order to become a fully trained hotel clerk. I was also very successful there and made a lots of new friends. The most significant person who I met, was my best friend and still he is. At the time being I am preparing for the Proficiency exam in English, as well as, I go swimming in my leisure time. I participated in the past in a swimming team and took part in numerous swimming contests. Due to the school and other obligations, I had to put it off until last year. Now I am swimming almost one year again, but I am not in a team anymore. You might think that I had a lot of chances of meeting a girl all these years , but to my huge disappointment, I haven't had. Its is my strong belief that many girls don't seem to prefer nice guys and that makes me feel really sad. I can't say why this happens. I have heard a lot times the words that nice guys finish last, but I don't think that this statement has anything about it. I have tried to speak to many girls, but I always failed to accomplish to convince them of having a relationship with me. I am aware of the fact that we live in a world, in which especially many teenage girls have superficial ways of thinking and don't seem to bother at all about nice guys. Is this true? It is my strong desire to fall in love with a girl that accepts me for my good charakter and doesn't abuse me. Of course I have the burning desire to have sex, but as mentioned before, I would rather wait until I find a nice girl that I really love and trust. In addition to that, I am not a guy who prefers to go in bars and as a matter of fact I neither drink alkohol nor smoke. I would really appreciate no time wasters please and respectful answers, especially from girls. I really admire girls and I would love to have a girlfriend which appreciates my charakter. Thank you! Sorry for any writing error I made.. I am not a native english speaker by the way.
Alex