If you know nothing about vehicles, then you must understand that living in a vehicle will cost you more than people who are mechanically savvy. You vehicle is not only your transportation, but your home. When it breaks, you are literally homeless until it is fixed. So, there are some courses out there and you should take them. Get the newest vehicle you can get and make sure there is a warranty. Read your vehicle manual from cover to cover, religiously, like it was your Bible, so you find out how to take care of it. Practice basic tasks on your own from videos or pay mechanics to let you watch and help.