Start with a trading system
"As soon as there is a proper profit, capital is emboldened. If there is a 10% profit, it is guaranteed to be used everywhere; With a 20% profit, it becomes active; With a 50% profit, it takes risks; With 100% profits, it dares to trample on all human laws; With a 300% profit, it dares to commit any crime, even risking hanging its head. "But Ye Fan got a system with a thousand percent profits!