This is good. It means your learning so next time, this wont happen.
This is the past most guys have trouble with. What I would have done next depends on the situation.
I'm going to assume you only talked to her for around 5 minutes.
1) If you're at a party, just treat this like a game. In a game you can reset things if you mess up. It's pretty much the same in real life. Let's say that you totally fucked up the first five minutes. Just leave her. Then in about 30 minutes or so, just come back and talk to her. Talk to her as if you never met her before, so introduce yourself and all that jazz. She might be like, wtf, but seriously, if you get good at this, then you could turn a "fuck no" into a "hell yeah" by the end of the night. Reason why this works is because women follow their emotions more than logic. Their emotions change like a player changes hoes (Song).

Seriously, one misute you're a creep and the next your prince charming. So next time, try resetting. But this only works if you're going to see her again. Ex: a party, school, etc.
2) After she said,
Quote:
"You know there is a five year gap between us and plus, I'm not really comfortable talking with you, I've only known you for a bit".
Vay

I would have pushed forward still. Maybe say something witty like, "Sure you do. You know what my favorite color is." Say something that you already told her. Do witty things to make her smile. If she's in a good mood, then she's morel ikely to get with you.
If she still refuses, then try getting a date with her. Believe it or not, getting dates are easier than getting numbers... For me at least. So next time, try getting an instant date.
Ex:
(After you've tried your witty banter)
Her: I still don't think I should give you my number.
Me: You know what? You're right. You shouldn't give your number out to a complete stranger. That's just be creepy. So let's go.
Her: What? WHere?
Me: I'm in the mood for some minigolf (or This coffee place has great coffee or something).
Her: ...
Me: You said we didn't know eachother well enough. Well, let's get to know eachother. (wink)
See, just keep pusking forward.
Oh also, one more thing. If she hasn't left the interaction, then the game's still on. If you and her are sitting at a table or standing near a founntain, and she is still there, it's still on. Girls don't hang around guys they aren't curious about. So only think you're fucked if she's leaving.
_________________
Thinhman
thinhman@hotmail.com
"When I get sad, I stop being sad and be awesome!. True Story." - One of the greatest PUAs ever!