Playing with contracts is not a matter of life and death; it's a matter of multiple deaths. Contracts can be played, but the risks are extremely high, like walking a tightrope on the edge of a blade. If you can't control yourself, you risk losing 100% of your principal. Invest 10% to open a 10x contract, and put the rest into spot trading or wealth management, only dealing with Bitcoin. Contracts are a double-edged sword; it all depends on how you use them.