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
You don't need to go back from the time that bitcoin is low, you just need to work for it if you want to be rich, there is no easy to be rich imho and not only bitcoin give you oportunity to become rich.
A person must not be an empty dream. A person should have specific plans for the future. Then, there is a high probability that the person in the future will get exactly what he wants. The same can be said obitkoin. You do not need much to be an impossible dream. We need to work and be able to think properly.