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
For me I think work hard and whatever you do do it heartily and it is important that you enjoy what you do because you will grow tired if you don't love what you do. And it will pay off soon.
Yes hard work is the proven method to get rich. To suit for the modern world we must hard work along with bitcoin which may ensure the possibilities of getting rich simply doubles. Along with hard work to earn, we must hardly concentrate on savings to keep ourselves rich.