What's a realistic percentage of protein to have per day / a realistic maximum? And also should I be measuring by meal or daily intake?

Ending my first day and it seems like a lot of planning has to go into meals to hit the right numbers just because of how different meats have different amounts of fat / protein and I have to be super strict on carbs.

How much protein by % of calories should I be taking in, and do I need to be as specific as by meal, or is it ok to have some meals higher in protein and some higher in fat, so long as carbs stay low?

Day 1:

~1500cal

4% carbohydrates (15g)

61% fat (102g)

35% protein (132g)

Weight: ~280lbs

Height: 6'2"

Male, 22