I was just reading the age of your pup and at this age.... Keep everything fun and dont let your pup get bored of doing "Baby Retrieves... Always end a Session when she is excited..That will keep her fired up for the next session...

Now is time for socialization and the two of you learning more about each other...and doing some "Baby Obedience.".

I've seen in the past people that have tried to do the Hold Drill before theier Dogs even got thier Canines in and expected them to hold a Bumper and then hammered them for being unable too...

Enjoy your Pup and Let your Pup enjoy you!