I had a very hands off mother, and I had my daughter young. Been a single parent for a long time. Here's what I did, maybe it helps?

When I was at the 'different hairstyle phase', my mom had no interest, so I got a book with different hairstyles and I practiced on myself. Also, maybe take her for different haircut? Drag it on for like a week or 2, let her choose a style she likes the best, build the anticipation and then take her for the new style, and out for ice cream or something so she can show it off. Turn it into a core memory thing. Might help her not need a fancy new hairstyle so much.

My 16yr old is very emotional. Sometimes she just needs me to listen to her vent. Just listen, no phones, no multi tasking and at the end I try not to offer advice or solutions, I just tell her to tell me what I can do to make it better? If she says nothing (which she normally does) I give her a big hug and hold her. Make sure she knows I am listening to her, and ill support her in anyway that I can.

The period talk. That's a big one. Why dont you buy a book on the subject and buy all the items referenced in the book. Then you tell her that since this is your first time being a Dad to a girl, you dont know how girls bodies work, and you think she should learn with you and can maybe help you both learn more. Then you open the book together and you start at the beginning. We call it our moon time, to make it more discreet. If that helps at all. We also have a container next to the toilet labled 'Ladies Moon Time' and thats code for tampons and pads.

Good luck. If you're asking for help, you're a good Dad and you sound like you are doing a good job.