There is a mechanism behind the on-the-day effect and knowing it gives you the method.
Your eyes adapt to whatever is in front of them. As you push contrast and saturation gradually, each step looks like a small improvement relative to the last one, and your reference point moves with it. You never see the cumulative distance from where you started. A week later your eyes have reset and you see the total.
So the fixes are all about restoring a reference:
Toggle the before and after constantly. Not at the end - every few adjustments. That single habit catches most of it, because it forcibly resets your comparison.
Do not export on the day. Edit, sleep, look again in the morning, then export. This is the highest-return habit in this thread and it costs nothing but patience.
Work at a smaller size. Overcooking is easier to see in a thumbnail than at full screen, which is why it is obvious in a feed and invisible while editing.
Give yourself a time limit. Most overcooking happens in the last twenty minutes of a long edit, when you have run out of real improvements and keep moving sliders.
And notice the asymmetry: you can always add more later. You cannot un-see an edit you have already published.