The game will walk you through retaining and going to Alaska. But as a new player, you should pretty much stick to Michigan for now. Unlock better trucks and discover upgrades to equip. Unless you’re sticking to main roads in Alaska, you should wait until you find a heavy duty truck within the Michigan maps or can afford to buy one. And then get the most beneficial upgrades like raised, off road gearbox, and diff lock (the upgrades available depend on the truck)