A. First, there is no such thing as getting behind in energetic and spiritual work. You are exactly where you need to be at that present moment and are practicing at the exact level that you should be practicing at.
In teaching energetic training, students often make the mistake of thinking that the next meditation or exercise is the one that they are supposed to be on, and this leads to the feeling that they have fallen behind or if enough time has elapsed, that everyone else is ahead of them. This is not true.
Whenever you train in these types of energetic, magical, and spiritual teachings, you will always be taught information, beyond what you can embody in ability at the current time. This is why so many students get confused as to thinking that because they have read the material, that they know the material, and that they can do the material. This is rarely true.
It takes much time and daily practice to cultivate and gather the energy to perform certain trainings and meditations, reading them and practicing them does not mean that you qualify energetically or spiritually to be doing that particular meditation or training at this time.
It only means that the teacher is covering the material in class and introducing you to a new training because they must continue to move forward in teaching the information, knowing that it will take much longer for you to embody and manifest the abilities of that particular training.
So, whatever energy cultivation exercise that you currently qualify to do, then that is where you are supposed to have the focus of your mindset and practice in order to progress. To move ahead and practice techniques and abilities that require more energy than you have cultivated will definitely put you behind, because you are "wasting matches trying to light a log that you don't have enough fire to burn", but you can never get behind if you are training at the level you are currently at, you need to know what level that is. This is what benefits the body and mind the most.