I think you missed some opportunities there. Its always some girls that are in the same lane as you. A lot of times guys get caught up trying to get at women that arent in their lane and assume all women feel the same as them. In college there are a lot of nerdy awkward women who arent really putting themselves out there like that, you just need to approach them in a way they are comfortable with. You gotta learn to be more observant and be able to pick up on which chicks are your speed.
I saw in another post you said you werent comfortable with the online thing and im here to tell you that is a huge mistake. Ive met so many cool ass chicks online its crazy. There are plenty of women on there looking for the exact same thing as you. Yeah its a lot of hoes, gold diggers, attention whores, etc....on there but then again thats where you becoming more observant kicks in. Ive met chicks who love video games, action movies, chilling and watching movies, paintball, etc.... No lie the majority of the chicks i became cool with from online dating sites are now married or in serious relationships.
One last tip is put yourself in situations where the women are approachable. Places like the mall, gas station, out on the street, club etc....pretty much anything thats just random is not a good pickup place for you. Those are places where women know they are going to be hit on and have put up their guard. More than likely by the time you get around to hollering at her about 3 other nikkas done already spit game, nikkas with better game than you, so if she didnt give them the number then she tired of it and is gonna blow you off. Put yourself in fun, laid back social settings with your friends. Hit up some local music lounges, go to cookouts, outdoor food festivals, shyt like that where you will be there having fun with your friends and women will be there having fun with their friends. Basically a place where the chick didnt leave the house thinking about how many wack nikkas gonna hit on her. Find a way to end up having fun together and pick out which of those women is your speed and make sure that activity ends up with you two interacting a lot but not on some obvious im trying to hit on you shyt. Then at the end you ask for the number.