I would appreciate any advice you could give me.
Here is my problem:
I am a college fresman and I am falling in love with my classmate. I know what you're thinking - been there, done that, but this is something different.
I have some issues with RECEIVING love. This guy seems to like me, he's totally giving me these clues, and that's great, but I am suddenly feeling so insecure...
I think it might have started in my early years actually. I had kind of a harsh father who would always tease me when I cried or never respond to me showing love to him - I mean, he would never even hug me. So I developed this mask, this facade and yeah, I am 19 I don't cry anymore but my love life is a total mess. It is pretty much non-existent, if you will. The other problem is, you'd never tell if you met me. Okay, I really really do not want to sound priggish, but I am actually pretty, I am very slim, have blond hair and blue eyes and I am also a nice person, or I am trying my best to be one. I am so self conscious about this, even my close friends don't know. They would say that I have everything, but hell no, I don't. I can't tell a person that I like him. I don't know how to act. In past, I like some guys and they would come up to me and all of a sudden I would lose interest and run away. I am tired of this. I care so much about this classmate of mine, he's important. I want to love and be loved.
Please help me. How to deal with this?

And in the past?  They were just guys... you don't even say they were guys you liked or felt comfortable around.  You don't have to be comfortable with every person... you need to find the right one.  Maybe this classmate is right for you... maybe not.  It comes down to you to decide whether or not you're going to let this opportunity pass you by so you can regret it later, or take a chance now and see how it goes, you know?

No one has the perfect life, we all have our troubles.  This is one of yours, but that doesn't mean there's anything "wrong" with you, you know?  You have your good qualities, and that's what counts.... but developing trust with anotehr person takes TIME.  You don't just automatically open up to someone... you have to develop a connection, and that's not the easiest thing to do.  But maybe you've found one with this classmate, and maybe if you take a chance at trying to approach him, things may work out.  Who knows, but at least you tried, right?