Chicken slings can be helpful for periods of time to get them upright and in front of food and water. But she does need to learn to get around on her own for periods as well. Here is some info on slings:
https://www.backyardchickens.com/threads/versions-of-chick-chairs-please.1166308/
https://www.backyardchickens.com/threads/versions-of-chick-chairs-please.1166308/