Lots of slipper stealing and crying in the pen/crate

Hello!

Australian shepherd 9 weeks. Had 1 week

I recently got my Australian shepherd, Daisy. She’s so lovely but I feel way in over my head. I’d love any direction to resources anyone found great for chaos puppies 😂

Whenever I walk, she bites my slippers and tries to steal them off my feet. I’m following the method of yelping ouch and redirecting with a toy if I can get to one quick enough. Otherwise I keep walking yelling Pechan everytime she bites until I get to a toy. If she won’t take the toy or goes back to my slipper I typically give her 2-3 chances until I leave and close the door to another room for about 30-60 seconds and praise when she’s calm. (Sometimes she’s at the door waiting and I don’t realize). But she keeps doing it, it’s been about 3 days now. Am I doing something wrong or is it just a long process—which I’m okay with. The unknown is more of what’s getting me.

Also, I can’t play pen or crate her. As soon as i put her in and she has no escape, she starts running back and forth and starts whining. If I leave her eye line she immediately starts crying. I let this behavior continue for a few minutes(3-5) until I go back and take her out even when she’s crying. If she’s in the crate she’s scream crying and biting the grate(I’m scared she’ll hurt herself).

Any direction or guidance would be very much appreciated. I’m considering paying 1750 for a trainer because I don’t want her to be struggling with things as an adult. But that’s a lot of money for me right now after new puppy costs 😭what I’ve tried for the play pen is feeding her in there, leaving the door open and putting some toys in there but not all of them.

Here are some pics of my pup! Thank you hi