Brother Sultan, there's absolutely nothing with falling in love before marriage. But the fact that you're young (I'm assuming 19, since you're taking them first year courses), you should be focusing on your priorities right now: School. Be someone first, then take your prize after you reach your goal in life. God-forbid you become sprung on this girl and your grades start going down. You think her family would approve of you then? I'm almost done with medical school, and I'm stilllllllll far away from being a responsible man. I could get married, but I prefer to have myself established first. That way, when I do get married, I can provide for my wife.
Please, bro, focus on getting A's. Love can wait.