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
There are many ways to get rich one is to finish studies to be employed in a good company to earn a good salary, and you can do business or why not do both.
Average income of an employee is about 50k $ a year
Most CEOs get 1mil$ a year - so I would recommend starting a startup and grow it to a big business