I think at your age, activity level, height and weight you are right where you should be. Just eat good paleo foods and don't worry about the carb/fat/protein. As long as your weight is stable and you are feeling good when you work out, you are fine.
It's us old folks who spent 30-50 years eating crap and not exercising that need to worry about the carb curve and macro ratios. Start eating Primal-approved foods and listen to your body. You read all the right books, now you just have to figure out what you want out of it.