Am I overthinking this?

Hi all!

I'm an absolute beginner at juggling, trying to learn 3-ball cascade. Watched a few videos, then began practising... been at it a couple weeks now.

My throws are still very inconsistent (different heights, too forward/backward, too much on the sides, the works). More practice is needed, sure. I even went back from trying 3 ball flash to single ball throws. But I also started to think if there is some detail worth paying more attention to.

Like, what's the best way to move when you throw? Arms follow a "scoop" arc, ok, but then what? Do you use your wrist to give momentum to the ball, or just your hand? Is it best to have the ball more towards your palm, or your fingertips, when you throw it? Do you try to impress some rotation to the ball, or just let it go?

Apologies if these are FAQs but I searched a bit and didn't find much.

Thanks!