I tried feeding her there this last time and she wouldn't eat because she was crying. Should I try sitting with her and let her eat in there while she is more calm?

We just got a new puppy last week, and have been fortunate to be home without needing to kennel her much at all. However, Friday will be the first time she's in a kennel while we are both at work. She's been in a kennel for about 20 minutes - 1.5 hours so far (with the average being about 30 minutes, once a day on four separate days), and hates it every time. She cries and barks the entire time, and has defecated every time.

We've tried making the kennel small enough for her to just turn around, as well as giving her a circular pen where she had a good amount of room and wasn't in a real kennel, and nothing has helped.

It could be some separation anxiety, but she also doesn't seem to like being confined much (I took her to the bathroom and shut her in there with me one time while I was getting ready, and she just doesn't like the door being shut. She still whined and only calmed down when I was actively distracting her with a toy, she wouldn't play with it on her own).

Help! As much as I simply don't like cleaning up messes every day or making her take that many baths, I really just hate that she is so miserable that whole time. How do I help her and stop this behavior?