Hi, so there are many options here. Generally the way that CJ works is we are not killing you the entire time and it gradually increases so doing one ride instead of a specific training and just skipping that one specific training is fine. You also can do what we call is following “My Plans” which means pushing the plan to my plans and activating it there, then you can just do one workout, and once it is done you mark it as completed and do the next. This is instead of a calendar approach.
You can have 3 different sequences of workouts in a week. Some might feel hard and some not so much. If you do a longer block near the end they start getting hard. The main thing is try to limit how often you do 2 hard days in a row and almost never do 3 hard days in a row. So Hard>Z1-recovery>Hard can be ok but even Hard>z2/z3>hard is not.
Overal people should either have a good coach or self-coach themselves and so it’s more about applying logial proven general principals. Even most AI solutions make a lot of mistakes and give bad advice so understanding the basics yourself and what works for you and what does not makes the biggest difference.
Let me know if that answers your question or if you need additional info. Mostly just have fun and I say prioritize your outdoor fun over structured indoor training unless you have something extremely important you are trying to do, i.e. solve a specific performance related problem.