This learning process is well worth taking the time to become familiar with. Once you've become adept at the details it need only take you a few minutes to do. Personally I do it a couple of times a week and after a long day to help my body return to a neutral. In the first instance take your time and follow the video as you practice (or listen to the audio and use the video just to clarify) and go as far as you can comfortably. Simply the pressing on the wall coupled with the breath and eyes will have a desirable effect on your system alone. Learn the rest of it, particularly if I have advised you to do so. Come back to the parts you cannot do today, tomorrow.