I was a baby in NA when my sister really began to bottom-out. If I could go back to the summer of 2014, I'd say:
1) Let go of the laptop and leave it be at the pawn shop. It sucks because you're using it for online meetings, but she's going to lose it again anyways (which is $130 gone for you).
2) Don't chase after her. Don't go searching for her because you think that if you keep tabs on her, she has a better chance of getting out of the dark rut of addiction - she doesn't. No matter what you do, she will climb over you to hunt down the drugs until she has had enough.
3) Keep the focus on the child. When you are obsessing around her, she lives within that world. When she watches you worry about her mom, she feeds off of that crisis mentality.
When people told me to 'detach with love', I thought they were crazy. Now I realize they were sane.