How do i get in contact with her!?

[Tristan]

So, I had met a girl one night she took me back to her place (we are 24/25), and we had a "fun" time. She gave me her number the next morning. Since then I havent been able to call her cause her number didnt save in my phone! all i know is her name, and her address.
I messaged her on facebook from a friends account because i dont have facebook, with my number and told her to call/text me.
upon messaging her, i realized, she hasnt been on facebook in quite some time..
Should i stop by her place and apologize in person and offer to go out again? or wait for her facebook message.... thing is i want to invite her out for new years, and if she doesnt go on in a long while, i wont be able to.