Update: Thank you for everyone who helped! I took Rosie to the nearest vet and they took some x rays. From those, they said she likely has a respiratory illness like pneumonia and prescribed her some medicine for that. Getting her to take it is a whole other problem lol but since we've started...
Yes here is a picture of what I was describing with where she's been sitting recently, she's not stuck and she gets out of this when she wants to she just hasn't been wanting to. With the enclosure size, we will upgrade when she grows but we just got this one about a year ago.
I have 2 yellow bellied pond sliders, one is a female and one is male. My female turtle laid quite a few eggs for the first time directly into the water, which I read is stressful for them. Afterwards we moved her into a small sand enclosure for a little but she very much didn't like it, didn't...