You need to calm the fuck down!
Just because u starting to win her back over

dont go chasing her !!!
Let her come to you!! be the lamp and her the moth ....get it?
So no more contact remember unless she starts it and dont make any more plans with her leave it for tuesday ....play it cool or you will be asking me agian how do i fix this ???
Well its simple dont fuck it up from here

And when you texther keep it light and use plenty of cokcy and funny and keep you text messages shorter than hers and you be the one to end the contact and under no circumstances do you go see her agian
So just to repeat myself : no more contact until tuesday morning to confirm things for the concerte or unless she texts you first then you can reply after waiting no less than 30 minutes
She will contact you first trust me this will let you know you getting back in there

When she does wait a while before replying then text her some light cocky and funny shit and keep your text messages shorter than hers
and most importantly be the one to end the conversations
example) she text messages you sunday: so how was your weekend?
you: had a hectic weekend

her : cool , i did bla bla bla ...what did you get up to?
You: i fell off the face of the earth and it took me the whole weekend to get back ...did you know venus is the only planet that rotates clockwise

her : wow bla bla bla
You : well its past your bedtime little sister and i need my rest chat another time
I already know you like the last message now use it but understand a principal there at the end i did not say when i was gonna text her hence i create mystery and ''hard to get''
Dont fuck it up i wont help if you do !!!