Testing too much?

My diabetes isn't well controlled at the moment. I've been testing my fasting levels, sometimes before a meal to guide my carb intake, 2 hours after meals. Bedtime, and then twice at night to test for dawn phenomenon or Somagyi effect. I also test if I feel high or low. Is that too much? How often do you test? My first doctor told me not to test and my second said just to test fasting or if I feel low.