I'm introverted. Attracting opposite sex?

I'm 18 years old and a commuter student in college. I'm studying pre-med... I'm really introverted (INFP). I live with my parents and sibling now, but I'll be moving to a house in the country by myself with my dog and commute to school. I have never been on a date or really had any guy ask me out before... I've been told that I'm really pretty, smart, attractive, and etc., but there haven't been any guys that have expressed interest in me... I've been a loner almost my whole life, but I do have a few close friends and many acquaintances. How do I meet guys that will want to get to know me more? I know a lot of guys because I work at a gym, but no one ever expresses interest to me. Am I destined to single life? I really like guys and love kids, but I'm afraid I'll be alone my whole life/live with my parents.