Most Helpful Girl
You may be sending off vibes of un-approachability. I have found that too many people bank on good looks to get the guy or the girl. But a less hot gal who is easy to talk to and friendly will do much better than the hot girl who won't make eye contact and whose shyness makes them appear aloof and unattainable.
I used to think guys were so fearless that nothing would stop them from asking out a girl they were attracted to. That may be true in many other areas of their life, but not in love. A lot of confident guys melt around the girl of their dreams. Worse, you might not appear to be the girl of someone's dreams if they think you are pretty but cold.
I don't know if this does apply to you, only you can answer that, but take it to heart and think about this. Good luck!