For me, day 2 is by far the hardest. Significant energy swings on days 1 and 2. After I hit day 3, it's mostly smooth coasting - I can do 7 days no prob. If any

For me, day 2 is by far the hardest. Significant energy swings on days 1 and 2. After I hit day 3, it's mostly smooth coasting - I can do 7 days no prob. If anything, days 3 and after, I'm more productive. I find it somewhat easier to focus, and there's zero eating/foodprep/cooking/toilet distractions (I also pee less despite drinking quite a bit of water.) I say this with the advantage of having done this for years - you may need to build your way up to it.