Hiya Mike.
Welcome to the trucking world. Let us start by letting you know not everyone who learned to drive a truck stay to become truck drivers. There is alot more to it than just driving.
Pay is a big factor. If it's not for you, then this is the right career move, with lots of travel involved. Just take some time to see what you pass.
However, after a while, you might want that pizza business again. I hope some of the other truckers can expand on why I tell you this. Me, I'm a local driver hauling fuel. I did the OTR thing, and it wasn't for me.
Anyways, good luck, and drive safe.