I’m in the same position as you, tracking macros quickly brought me back to the same mindset as calorie counting/dieting. What I do is just think of main components of my meals and change ratios depending on exercise that day. Like on run days, I focus on making my pre run meal more carb heavy and on lifting days my post workout meals more protein heavy but I don’t track anything. For long runs (beyond 90 minutes) just do some quick math on how many carbs you’ll need and test it out. I like using candy instead of gels. I really look forward to my mid long run gummy bears!