What do you do if you can't turn the key at all? It froze completely and won't budge

First, make sure you are using the correct key. If you know it is or you are, and it just won't turn, no matter how much you jiggle and wiggle and twist. It will most likely need to be drilled out. It could be the cylinder, or the ignition switch that has failed. The cylinder need to be in ACC, and turn past to come out.