Accounting classes, economic courses. Good idea to know how to keep your books, it is very easy as a sole proprietor. You have costs and you have income. If you have extra money(profit) every month, you're business is on the right path. Yes this is a very simple view. Running a single truck business is not really more complicated. Hire a tax attorney, bookeeper or CPA to help set up your business. Hire these professionals to guide you and to file your tax reports. These people will cost you some money but it's cheaper than paying for penalties, fines and unpaid taxes if they aren't filed properly. Good luck
Yes they at least help. One I heard of using a Herd brand hit a moose broadside, just broke a headlight. One I seen hit one on the right front corner, it did smash the headlight assembly and damaged the fender. But the truck was still able to drive away.