To be rich is not an easy thing, you need to work hard to make it happen. If you choose investment then you must study it before making a choice, and you must also have patience.
it's not all about working hard, it's more of working smart, diversification is so essential, you need to have different sources of investment if you are to choose investments. Top 50 richest man works for their selves, no one ever made it to top 50 richest man by earning a salary. If you are earning a salary, think about investments also so as to have financial freedom