Met this really cute girl at a house party, we were pretty flirty and I got her number. So I text her the day after the party:

Me: Hey, you're the only person i remember from last night :L probably cause you're really cute. Happy birthday btw x [14:24]

Her: Whos this? x [14:25]

Me: Kyle, I was the horribly drunk one x [14:26]

Her: hahahaa.thought it might be you :L you wernt that drunkk were you? :O thank you for wishing me a happy birthday x [14:41]

Me: Oh i was so bad, definitely feeling it now. I think you've stolen my aviators too x [14:55]

Her: hahaa aw bles you, i went to town and still aint hungoveer its brilliant but tbh will defoo be feeling it tomorrow haha.. noo i never i wore them for 5 secs you took a pic and i gave them back x [14:57]

Me: yeah yeah likely story. No hangover? I hate you now you towning it tonight? x [15:00]

Her: hahaa.. nope i never really get hungover.. usually feel it days later.. :L thanks :O of coursee i am its my birthday! are you?x [15:01]

Me: I always get day long hangovers, wanna trade? Not sure yet, no one interesting is going. x [15:05]

Her: haa unlucky! no ill pass ;D im happy nott being hungover.. aah fair enough, well if you go down, gimmie a text x [15:06]

Me: ill let you keep those aviators you stole, if you trade go to casino and gamble away your money it's always fun x [15:10]

Her: i didnt stealll theemm!! ive got my own i dont need your cheap primark ones that you cant even see out of ;D haa defoo not!!! x [15:11]

Me: You wont get away with this right im off to drop a mate at work, probably still drunk tbh :L might ring/text you later deoending how much ive forgiven you x [15:15]

Her: whateverrr.. okay :L haha, have a good day! i should be forgiven its my birthday!x [15:18]

And this is later on, i was feeling really rough so didnt put any thought into these ones

Me: Ive forgiven you but only this once not going to town tonight cause im dying, had a good day so far? x [19:27]

Her: hahaa good!! aw you suckaa.. yeah its been gooddd.. yours? x [19:52]

Me: My days been spent in bed :L glad your days been good so far. you should come to town next thursday x [20:28]

Her: you saddo!! :L haha. i joke. maybee.. im going monday and next sat x [20:41]

Me: ahh you loser, if you come thursday you'll get to see me x [21:12]

Her: noooo ;D x [21:43]

Just found out about the PUA stuff so any advice would be great.

1st thing, don't text from the I, perspective, I think you are this, can be changed to YOU ARE THIS, next when going for meets, don't seek approval, say i will be at Xlocation on Xdate, i want you to come, or you are invited to come,
don't negatively frame yourself the whole point is the present yourself positively,
stop DLV'ing, stop qualfieing, and try not to ever seem unsure of your actions allways be sure of yourself, if your texting you can think about what you are saying before you say it,

in person > phone call > text > email > thinking about a person but no contact

Thanks for the really detailed advice/analysis. Looks like I did the complete opposite of what I should have done.
Will definitely take what you've said on board.
Now how would I recover from this? If at all possible.

2 week+ freeze out, re-initiate contact and try again, she obviously was interested in you but you kept lowering yourself, and im not sure you can recover from this that last insult probably fucked you, but nothing is impossible,

the more you can say with less, the better, don't explain yourself to women (unless you think it is truely nessicary), and don't ask for things, just do things and assume they will follow, try not to speak negatively about yourself, allways have something better going on then she does

Yeah will try again in a couple of weeks. Thanks for the advice, will definitely start trying to improve my game.

Wasn't too bad imo, I thought you were showing way too much interest, but in a playful way. And I thought you talked about the hangover way too long. Basically showing you can't hold you're liquor, not comfortable in social settings so you drink too much, etc etc. Pretty playful though which is good.