Honestly, I go with the flow quite a bit, just in a mindful manner lol! My general philosophy is to be on top of it 90 - 95% of the time but then do whatever the other 5 - 10%. So within that 10% would be like days in which I'll eat things that don't really benefit me but I want the hit of dopamine I get from eating it, or whenever my gf wants to eat something sweet I'll save my 10% for that, which also would be the 10% or so I give myself with making purchases that don't really serve a purpose other than making me (my brain) feel good in that moment. I used be more like if I don't track everything meticulously and if ever I stray away from the plan, it would impact my overall mood, but nowadays I'm much easier on myself. It's now more of a control the controllables, but also be adaptable to ever changing external environments.