Overpaid or Underpaid

I want to get people's opinion about something for my curiosity.

So I am the type of person who doesn't stress on money. I became a branch trainer/Patrol captain/Fleet Vehicle Manager about a year ago. I only took the position because my site closed down and I was offered it and honestly wanted some job security so I took it.

As a site supervisor at a call center I was making $16.50/hr with just time under my belt.

Now since I am the trainer/instructor I have the following: - GA Unarmed Secuirty Officer Instructor Licenese. -SLED Unarmed Security Officer Instructor License -American Red Cross First AID/CPR/AED Instructor License -I am notaries public in GA. -Patrol Captain -Fleet Vehicle Manager

So my current pay is $18.00/hr with no added benefits except when then office decides to close on holidays, I still get paid.

So am I getting underpaid, fair, or overpaid?