You can certainly benefit from Energetics, even if you can't lift your arms.
Here are some possible options:
If you can easily move the other arm, use the sore arm as the stationary arm and move the other arm through the various positions.
If moving either of your arms over your head causes pain, discomfort or tension, use one arm as the stationary arm and visualize (imagine you can feel) the other hand on the spots. If holding your arm in one position exacerbates the problem, you can alternate hands.
You can also move your hands through the lower positions and visualize the ones that would give you trouble.
Someone else can hold the points for you as you say the words, if there is someone close by who'd be willing to put their hands on your head:)