Reminds me a lot of my Charlie growing up. He is 15 months now. Not too far ahead of yours. Perjo is an amazing bird.
Hey, just some tips for you since you really seem to care about her, and honestly, I wish I knew some of this stuff myself back when my grey was 6 months old.
1: Your grey will be coming up on one heck of molt at around 8-11 months of age. It would be wise to be prepared as this is where a lot of habit forming issues such as feather picking/screaming can stem from. When the bird molts (especially CAGs), the new pin feathers coming out can sometimes be uncomfortable. The nutritional needs of the bird becomes more taxing since their body is trying to replace each feather. Since your girl is about 6 months old, get her stocked up on her calcium and beta carotene. A B-vitamin complex is also very beneficial from my own personal experience. Give her eggs and other healthy protein foods, it will her a lot now. I even clean and crush egg shells to powder for the calcium and put it on some fruit. What is her main diet, if you do not mind me asking?
2: How is she taking on the art of bathing? Greys in general think water is evil...unless introduced to bathing correctly and at a young age...Greys like ice cool water and not warm or room temp. The more moisturized the skin stays, the less dry and itchy she will be during her molt. I am actually late in teaching mine to bath and am now suffering the consequences...mine hates water and will go down screaming...learn from my mistakes, not your own...
3: She needs some kinds of good oils in her diet...It helps them produce the preen gland if I remember correctly which in turn will keep the new feathers shes about to grow become strong, healthy and vibrant. Red palm oil and coconut oil is good. You could sprinkle a few drops in her food bowl. My grey takes coco oil straight from the spoon.
Just passing some tips along from a CAG owner to CAG owner...plus you really seem to love her so anything that helps Perjo is cool in my book.
Good luck to both of you!