Good medical classes in DFW?

Does anyone know of any good medical classes in the DFW area? My medical knowledge is admittedly woefully inadequate, and is basically what I learned 30 years ago in Boy Scouts and what I've picked up in YT videos.

So I'd like some actual formal training in what I'd find in a trauma kit so that I can apply it at the correct time and in the correct manner. I'd like to know how to properly use a tourniquet that's more than just a stick and neckerchief.