Greekgoddess

Personally, I think your carbs are too low and the protein level is way down. I am female, 52 on a cutting diet for a contest in October of this year. I still include complex carbs like sweet potatoes, veggies etc in my diet, I have tons of salad and advocado with olive oil poured on, and at least twice as much protein as you have every day! On your current diet I think you may start losing muscle mass quickly.

Try to vary the chicken and tuna with other protein sources so you don't get bored rigid.