Don't forget about healthy fats , that will be your main energy source , lots of guys that go low carb forget about it and that's why they feel like $hit , olso I would carb load at list once a week ( preferably evening meal ) and go from there , you could carb load more then once a week , depends of your gols . The idea is to keep you carbs low during the day and eat carbs around your trening , personally I prefer to carb load after my trening session. And if you have days of you could load the night before heavy trening.