Do a trade as an apprentice then journey level for a few years then start your own small business of that trade is the easiest, fastest, and most certain direct path to being a millionaire by 40 in most big cities in America. There is such a shortage of tradespeople and most of those small business utilize no technology, don't keep appointment, and have terrible customer service. All you have to do is be decent at your trade, have an online appointment portal, and show up on time and you will make really good money. We desperately need to encourage this as a society or we are going to run out of people to keep our homes from falling down.