I've had an involuntary psych eval but not hospitalization. I was presenting with significant suicidality and only got out of involuntary IP by lying during the eval.

I've been exactly where you are before... taking extra benzos to come down a bit during a mixed episode. The end result was voluntary IP (if you consider my therapist threatening to call the cops on me if I didn't go voluntarily...).

Whatever you decide to do, I hope you stay safe.