I’d say that if you’re doing reviews every day, Apprentice 3 up shouldn’t be a concern to you schedule-wise. It won’t make a difference doing Apprentice 3 reviews (u waited 23h) 6h later. For Apprentice 1 and 2, it might.
One thing to take into consideration is that you don’t need to change overnight. Try doing it during the weekends (assuming you’re more free during those times). Once you get that and if you feel comfortable, you can then slowly start adding this habit throughout the week.
One thing is that doing WK every day is already a habit. You’re doomed to build up habits with WK, whether if you do reviews in the public transport, in bed after waking up, during lunch, etc. Those are habits. Everyone has their own. So I’d suggest going for the gradual change and to identify those habits you have so you can adapt WK to it.
Another thing that’s important to add is that not following the schedule every day is okay. Imagine you’re only able to do it during the weekend without feeling stressed out. That’s still 2 days per week that you’re doing better. That still counts
Adapt WK to your daily routine, not the other way around.