Like Coco Pebbles said, it just takes trial and error. I was mortified at what poor Annie looked like when I first started cutting her. I think that's why she was always happy to wear clothes...it hid the horrible home haircut that her momma gave her.

But fortunately her hair grew fast and with time I got quit good.
I feel like I'm starting all over again with rookie mistakes with Gracie Ruth. Her build is all different from Annie's, she a little miss wiggly butt, and she has beautiful long hair that I'm just really having trouble with the thought of cutting off. I know eventually I'll get a good style for her and she is getting better and better at standing still...well most of the time.
So don't sweat the bad cuts, just keep working on it, you'll get it right and then you'll love it when someone asks where do you take her and you can say you do her yourself.