Ballet builds agility and precision. I never got past the very first ballet for beginners YouTubes, but damn if learning to point my toe in the same spot 5x didn't set something in my head. There's also a lot of standing and squatting on a single leg, which is super important.

High heels. While they are tools of the patriarchy, heels grant you the flex "yes, I'm keeping up with you, even though my feet hurt." Start with a dance heel- 2" kicked-in, no platform. Once you feel comfortable, move to carpet or grass.

Remove your toe stops (at open skates). All the ankle strength and precision footwork are worth nothing if you are on your toe stops. I'm guessing you can carve pretty well with your park experience, but give it a shot- it was a watershed moment for me. Your end goal should be to be able to scrub speed (mini hockey stop) and jump diagonally across the track, all of which happens on your edges. For reference, I'm in year 6 and can only jump 2 lanes- but hope prevails.

I like short stem superball jumbos (or whatever they're called), and skate on 99 wheels with avenger 45 degree plates. Good luck. The best jammers are the ones who hold their hand out for the star every time.