I recently did my first Judy Niemeyer quilt, Prairie Star, and it wasn't as hard as I thought it would be. It is very detailed and the instructions are long but, if you just take it one step at a time and really follow the directions, you can do it. I am no expert at paper piecing but there's only so many ways to do it. I watched several videos on YouTube by searching on "Judy Niemeyer" and the technique of putting everything into baggies was great. Using a clear plastic template sheet and a quarter ruler made a big difference for me. Watch the videos and you'll see what I mean if you're not familiar with that.
I'd start with a simple pattern, maybe even just different individual blocks, to get a feel for it if you're not confident in PP.