Buy or develop your own time machine and go back to 2008 and mine BTC on the computer at your mothers house in the basement
If I knew on how to become rich I would not be here right now but what I do know is that people who became rich always put hard work and effort first.
The money came later when they proved them selves with hard work and effort.
yeah first you have to work hard and then save for either investments or your own business. I think most wealthy people start this way. or you could either be the child of a millionaire or a drug lord. or you can hope to be one very lucky person and buy yourself a winning lottery ticket