OK, sorry, this is how your OP read. Of course you don't have to look after her, but again, at 13, she shouldn't really need someone to look for her, and indeed, her dad should be her main parental support.
Good to hear she isn't suicidal but as you've said, she is seeking attention and if she's not getting any when she isn't doing anything wrong, she will in desperation do something she knows is very bad because she'd rather have negative attention than none at all.
A child needs to know that they come first and that they have one place that feels like home to them. It sounds like she has no such place, and no-one she feels is giving her the right attention, including giving her boundaries and discipline. The attention that kids need is a lot more than just showing them some interest when it suits, it's showing them by everyday action that they matter so much that those who love them are prepared to make sacrifices for their happiness. It's making them feel love and cherished and being there for them no matter what, when they are good and when they are bad.
The 'not wanting to talk and locking in her room' is indeed totally normal teenage behaviour.
I find it very worrying though that you fear she would go in your room and still your medication. For what purpose would she wants to take your medication?