Here's my 2 cents bro.

First of all, forget about this girl. It's over, if you think there's still a chance, your really gonna continue hurting yourself. It seemed to be going well until you shot yourself in the foot with all that what you gonna be for halloween and made it seem like a big deal and you've never talked to a girl of her caliber before which most likely made her lose interest.

I'll give you a couple tips.

#1 Mindset

This is 80% of it, maybe even 90. Picture this for a second, your a super busy MAN, not boy, MAN. You don't ask girls for anything, like can I have your number?, when can I take you out, what you gonna be for Halloween? etc. You TELL a girl what to do. The way you do this is with your mindset. Like I said, picture yourself as a super busy guy, either out accomplishing things everyday or meeting people of your caliber or just out exploring and adventuring out there in life. Your doing things everyday and you have a plan and agenda for everyday. You make important decisions everyday, and you've got to look after yourself and take care of yourself, pay bills, and are independent. Okay? Are you picturing this kind of mindset and what kind of life you would be living. Now, with these responsibilities and decisions to make everyday can you really picture THIS man going to a girl and ASKING for her number? No, of course not. THIS type of man does not have time to fool around and play little kiddie games like that. He talks to a girl, flirts with her, TELLS her to give him her number with the sole intention of fucking her. No shame in his game. She says no or whatever, he moves on without thinking twice. She gives it to him, that's it. It's just a matter of time then. If your game is so strong than you would not even have to do ANYTHING. Just sit on that number for a week and see if she doesn't call you asking why you haven't contacted her and it's all downhill from there. The main concept of this is that you want to actually be interacting with multiple women at a time or at the least make it seem as if you are interacting with multiple women at a time. This drives women nuts and start thinking in all kinds of different avenues. So that's all I can really share with you. Change your mindset, make it seem as if YOU are the prize, not her. I think this is where you should start. Start at a mindset of you are always out and about and doing things constantly, start doing things like taking up a hobby or two, or going to a set place every week or so and along the way are interacting with women with no real intention but to see where it leads. Flirt with them, say strange things. Women love any way you get at them, as long as you get at them.

# 2 Yeah, uh, I pretty much covered everything in #1 nevermind.