I track my macros very closely because I’m a nerd and I love me some data. If what you’re doing is working I say stick with it.
As far as trying a 24 hour fast, you may want to ease your way up to that. In my experience, going from 16 to 24 is a big jump. But I’m sure everyone is different. If you go for 24, don’t beat yourself up if you come up short. My longest fast is 23.5 hours and I started to feel pretty horrible. I really wanted to hit 24 but I’m just not there yet. But I will try again soon.
Good luck on your journey.