New to flat towing and a little nervous

You didn't mention how you have the jeep hooked to the tow vehicle, but if you are using a typical tow bar from, say, Blue Ox, the tow bar takes care of the tracking. It is rigid left to right and the towed vehicle has to follow the tow vehicle as a result. Once the tow bar is locked into place, the towed vehicle will remain directly behind the tow vehicle. Look at it this way, there are thousands of vehicles being towed this way, even as we speak. It must work. I've towed my Jeep about 100,000 miles and never had a problem.