Ditto on the value of an attorney. But in the meantime, I'd still like to know if you've actually received *any* kind of notification from the the state of Virginia that your gun rights have in fact been revoked? Or are you just getting yourself spun up over the possibility that you've lost them?
If the only mental health care you received after your TDO was voluntary outpatient counseling, then you were not "admitted", you were not "committed", and you were not in a "residential setting". All of those terms refer to inpatient treatment at a mental health facility. Voluntary outpatient counseling shouldn't affect your rights under anything you listed in your second post.