Need help getting lean and cut

HI all. Well, I'm 5.9 and weight about 170 lbs. I'm trying to be more lean and cut, so I need help. I've been cutting down on the carbs. Is it a good thing to have low carb and more proteins a day and still gain muscles and not lose them?
If you have low carb (less energy), your body will start using the proteins from the muscles or does it use the bodyfat?

Morning: White eggs and 2 toasted white bread

Lunch: 2 chicken breasts and corn

Afternoon: Oatmeal and white eggs

After workout: Salmon and vegetables

Before bed: 40 grams weigh protein shake.

One question I really want to ask is:
What does your body do when you don't have enough calories after a workout to fix muscles?

Does it use the stored fat?

Yes your body weight is too much and you should not worried about it .
you should take fresh, healthy complete food not eat high calories food
properly take yoga and some regular exercises must support you for your
weight loss mission.
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