If you're a genuinely good guy, height doesn't matter, imo. There are many other factors that can make someone attractive / unattractive besides height.
I know someone whose husband is really short. They are happy.
So, I know that in college and in one's 20s in particular, there is a lot of focus on being "normal" and one thing that society deems "normal" (for some weird reason) is being in a relationship in your teens and college. I'm going to flat out tell you its not like that for everyone, no matter how much the media portrays it otherwise.
You might be better off focusing on how to enjoy your life without a girlfriend for the time being. I know women in their 30s who have never had a boyfriend, so it does go both ways. But, happiness is attractive
I am not sure how you can get a girlfriend, I guess I'm the wrong person to ask about that. For what its worth, I'm sure you will meet someone. Not all women are the same, just like not all men are the same.