Yes, the beak makes it more difficult for her to eat and drink, but they adapt well with a little help. Raising feeders and waterers to the height of her back can make it easier for her to scoop with her lower beak. Using deeper water and feeding dishes can make it easier for her to drink and eat. She is always going to have difficulty picking things up from ground level. Making a mash with her feed mixed with water can make it easier for her to eat. I would stop the corn meal, that is carbs, not enough protein, not enough nutrition. Chickens LOVE corn and will eat it instead of their feed. If they fill up on corn they will not eat the feed. You can buy small bags of feed, or mail order it and have it delivered. Keep treats of any kind to healthier choices, and to 10% or less of her total diet.