You can eat cheese on Keto. Healthy eating habits are just good ones to have. Good for you and good luck. I will say the biggest thing/problem with a keto diet is that a cheat day sets you back a week in the weight loss. If you just plan on making this a new lifestyle diet you should see some good improvements in the way you feel. As well as a "cheat" day isn't that big of a deal if this is your new way of eating. You will still lose weight with some cheating it will just be slower than without it.