You can also listen to other audios while going through the course. The breaks are more meant for the course audios since they are intensive energy work.
Any of the vibration audios for example would supplement the course magnificently.
Edit: Upon further notice from Dream, I think you should take a break or really easy down on energy based audios (such as vibration audios or energy blockage, chi or jing, ext…) for the time being. Not until you have finished with at least your first run of the audios (after finishing crystallization audio).
Reason for this being is because we are all at different levels of development and it’s best to approach the first run of the audios as a beginner. It’s best to all do it this way to completely avoid any issues that could arise. Overstimulation can be counter productive in energy development. (If you already have been listening to them, don’t worry, just stop for now and keep going as is. You don’t need to start over)
Vibration series for example can be pretty intense energy wise as well so it could overstimulate your energy system while going through the phases of the course. I do believe it would supplement it greatly as it has for me. But these audios came months after I’d already listened to the course audios. So after the first run of the audios, you will be safe to do so as your energy system will definitely be prepared for that sort of stimulation. And of course then you can mix and match (listen to body primer, energy sensitivity then vibration of creation, ext…).