From the HRX label:
"Do not take if you are pregnant or breast feeding, elderly or under the age of 18, chronically ill, or [b]taking[/b] any prescription or over-the-counter medicine, including but not limited to antidepressants (such as MAO inhibitors), stimulants, allergy medications, and medications for high blood pressure or other cardiovascular conditions."
I don't want to seem like a jerk, but it sounds like you burned out your thyroid, or whatnot, from over doing the stimulants, not the HRX. Add on that you were on for "a little more than a year straight with some off periods", and it sounds like you just flat-out overdid it.
I might agree with you on this. If training and nutrition are dialed in 106%, then supplements really aren't necessary but they can absolutely make good plans even better.