If the amount is $1000, then invest $25 in long or short at 10 or 20×, but make sure to set your stop loss and take profit. Certainly, you can double your money quickly, but for that, you need to understand patterns and market fluctuations to know whether the market will go up or down. Don't get swayed by the words of those giving false signals; try to learn on your own. Keep watching the market repeatedly, and you will start to understand quickly.