Im gonna be a sophomore next year. Im going through similar situation, i have a serious learning disability, so 95% of my free time i spend studying. When everybody else has 2 hrs of hw, i have bt 5 -6. So im always working and im always catching up. Its annoying. But yeah these people are right, you cant divide your life like that into work now, play later. It doesnt work like that.
After classes, try to talk to some of the girls in your classes. My schools a big school so it might be different for you. Its not really the same rules of street sarging. Try to talk to girls in your dorms areas. Cold approaches are not good in college, unless she thinks youre cute. (again different girls think different guys are good looking) If you just approach random girls on campus, that doesnt go well, shell give you 1 word answers to everything and awkward silences. Also since youre gonna see them again, dont ask for theyre #s until 3rd or 4th time, lest you look like a fiend.
But whenever you and girls are stationary, find something interesting and relevant and talk. Then at the end ask their name and where they reside and your good.