If there was a way, everyone would do it.
Some skilled tradesmen - plumbers, for instance - can charge $300 a call and $100 an hour for emergency work, so two hours on a Saturday night would do it.
Surgeons make $1,000 an hour or better.
There isn't anything legal that would earn you that much in that short a time, assuming you haven't graduated from high school yet.
Mow everyone's lawn in your neighborhood.
I can not think of anything legal short of selling all of your goodies or borrowing the money.
I pay my lawyer that much every 45 minutes. Keep in school....
sell your property