Investing with CFDs has high risk, high reward potential, but can also result in a quick loss of funds. It is not easy to double your money quickly, and you need to consider the following points: 1. **Know the market**: Fully research the market you are investing in, including market trends, economic data, corporate financial reports and other information. 2. **Use of leverage**: CFDs allow the use of leverage, which means that you only need to pay a portion of the margin to leverage a larger transaction. But leverage can also magnify losses, so use it with caution. 3. **Technical analysis**: Mastering technical analysis techniques such as trend lines, support and resistance levels can help predict market trends. 4. **Risk management**: Set stop losses to limit losses and clarify the profit and loss ratio strategy to ensure that the potential gain of each trade is greater than the risk. 5. **Stay calm**: Market fluctuations may trigger emotional decisions, and it is important to stay calm and disciplined. 6. **Keep learning**: Market dynamics are constantly changing, and it is crucial to continue to learn and adjust your strategy. Please remember that CFD trading is highly speculative and not suitable for all investors. When trading CFDs, you should ensure that you only invest money that you can afford to lose and it is recommended that you consult a professional financial advisor to understand the potential risks of trading.