Have you got the best source of biofeedback device for your needs?
I started on this voyage of using biofeedback device at age 16 with one of the earliest mind-machine, flashing one-tone LEDs and beeping in earphones.
I got into it because if insomnia.
(Coming from a hectic childhood, probably ‘traumatic’ by most psychologists standards, I had become anxsy… it was difficult to switch my brain off, noises or lights in the environment would keep my brain engaged.. But the mind-machine entrainment took my brain down into relaxed states, and I learned how to do it myself from there. The mind-machine literally taught my brain how to fall asleep!)
From there I explored the possibilities of brain synchronisation, learning and creative states, and high performance energization.