1. Funds: Use your spare money to speculate in cryptocurrencies. Remember not to borrow money. It is not that you cannot borrow money, but once you lose money, you will make random operations and lose money.

2 Trading strategies: Everyone has their own trading methods, position distribution, profit and loss timing, etc.

3. Judgment of the market trend: Knowing the trend well is a way to make a profit if you make a wrong judgment and stop loss in time.