I wouldn't advise a client to to a mock test everyday for a week before the exam under normal circumstances: its akin to telling someone to run the equivalent to a marathon every day for a week before a 'real' marathon.

In stead, take careful stock of what you're getting right and wrong, and learning what you're getting wrong vs. what you're getting correct. While most books and courses will cover the basic points, you might find you need to go beyond for the nuances that the GMAT rewards in difficult questions.

This next week be sure to sleep and eat well, and identify what changes you need to make - - in behavior and skills - - in order to achieve peak performance.

Good Luck!