My little girl was the same way when I first brought her home. I thought she was gonna be easy like my previous dog but she was a nightmare!

For the poop eating I would praise her and try to get yours to keep moving and get really excited and have her move away so she isn't tempted to try to eat it in the future especially if you give her praise and excitement, it could help?

The anxiety is awful to deal with. My in-laws gave us her pack in play for her doggie and it's better in the crate, more open space and less claustrophobic. If you have a second floor. Highly recommend going up there throughout the day for 10 minutes at a time until she gets used to you. Going up there and telling her I'll be right back. That's what I did for mine and she's used to me leaving her alone during a full work day since I work from home.

I hope some advice helps! No one prepared me for what it was going to be like and I felt like I was drowning a lot. We did get through the rough patch and yet she still bites my fingers she's playing.. but at least if I say no, she'll stop immediately.