Never been in a relationship

I’m 20 and I’ve never been in a relationship. I dated a guy when I was 15 but that wasn’t obviously true love. I’ve spoken to a few guys but it never went anywhere. I feel like I’m so far behind because I’ve never been in a proper adult relationship and missing out on that feeling of love. I don’t really meet new guys, I hang out with the same friends, go to work etc. I don’t really have the time to meet guys and tbh guys don’t really approach me because I’m not exactly the prettiest girl you could find. I just feel so lonely at times and sucks when guys I have spoken to seem to not want to pursue anything further because it makes me question myself. I sometimes feel like I’ll never actually meet anyone. I want to experience that sort of ‘young love’ feeling but I’m almost 21 soon and just feel like that’s fading away.