I'm in the middle of my first finger-style book, so these are nooby observations:
I tried planting my pinky, but it didn't feel right, so now I hover.
When I started, my finger-eye coordination wasn't too good. It took me a long time to learn patterns. It helped to say the string number aloud, like, "5, 3, 4, 2."
It was hard to keep a good picking pattern going when I moved from one chord to another. It took at least a couple of weeks before it started to work, even though I had no problem doing this when I strummed. So expect that some of things you could do easily before may not be easy now.
Don't feel like you have to play a pattern fast. Make it as slow as you need to in order to prevent getting lost and then gradually make it faster.
Practicing with a metronome was really helpful to me.
You may find that chord shapes that sound pretty good when you strum sound mutted, buzzy, or otherwise icky when you pick. May have to go back to the drawing board and work on proper fretting technique.
Well, that's all.