I'm 19 and haven't dated anyone?

It's sort of stressing me! maybe I have an unrealistic image of what it should be like when you're dating someone by unrealistic I mean I want things like you see in the movies etc. I also feel a little left behind with how almost everyone I know has had some sort of relationship except me. My standards aren't unattainable either, I've just never been past the talking stage with someone. I don't know if I'm rushing to find something but I feel like I've been patient and am willing to continue to be patient. I've recently been faced with the question of "Why aren't you dating someone?" and I honestly don't have a reason as to why. At the same time I also see things realistically that things can't be like the movies and I accept that. It's just all of the guys I've talked to that I'm somewhat mildly interest in, aren't even interested in getting to know me. I start to see all of these things as a sign that I'm not meant to be in a relationship even though I want to at least experience something more.