I feel your pain brother. Been working myself 6-7 days a week for almost 2 1/2 years now. In the last month we started getting Sundays off. Yay! Make sure you eat right and stay hydrated, it'll sneek up on you fast if you dont watch it. Hell set your watch and carry a snack or something in your tool pouch if ya have to.
Good luck Uncle Knuckles!