Your 800 cal/day diet is very restrictive. After another couple of weeks, your metabolism will go down and so will your weight loss. If you stay with your current diet, you should keep your exercise limited to cardio. I think 6 hours per week is ok. To work on toning and keep yourself going, you’ll need to increase your calories to 1200 by eating more healthy food: chicken, fish, egg whites, green veggies, and whole grain carbs like oatmeal and brown rice. For example: add a 400 cal meal consisting of 4 oz chicken breast, plain; 1 cup brown rice, 1/2 cup salsa and 1 cup steamed broccoli. If you eat 3 of those meals per day for a total of 1200 calories, you can accomplish toning and weight loss. Good luck and congratulations on losing the 25 pounds!!