She's the right age to start working on her ears. I opted to tape Bernie's ears when they didn't come up. You only want to shave the tips of the ears, down maybe 1/2 inch. (Maybe up to 1 inch after she and her ears grow) You can do it with scissors yourself. Get the hair off the front and back of the ear leather, and I bring the hair to a v point. Then let the rest of the hair grow.
I taped Bernies ears several times and there is almost no wrong way to do it. Tape them up, look at them after say 4 or 5 days...if they aren't up, do it again.
Here's a site that shows one method of taping.
Roo Bear Yorkies & Biewers Home of Magic Dragons - Taping ears