The best habit is the one that’s slightly better than your current one. And, yes, this applies to diets, exercise, reading, sleeping and everything else you can think of.
This is because sticking to your better habit is way more important than attempting a radical change that brings you back to your old ways.
When attempting difficult change, revolutionary change feels very tempting. And, for extreme cases (e.g. getting off an addiction), revolutionary change is probably the only option. After all, desperate times call for desperate measure.
But, for all other changes, an evolutionary works much better. It isn’t as exciting. But, it is many times more functional.
Big changes are small changes applied consistently over time.