In my experience, the remedy for an erratic nervous system isn’t always to bring calm to it.
Sometimes the erraticism requires a jolt to break the pattern and release the energy loop.
The discomfort of that process is temporary compared to continuing to attempt to tame the chaos within.
You’ve got to go beyond the mind and positive thinking.
The changes you seek come from going into your system where it all originates.
Rewrite and recode your system.
Release the old pains and traumas.
Unveil who you really are.