Investing in projects that have already risen is not a good idea. Choose projects carefully so that there is demand for them and yet they have an acceptable price. If the price has not risen, then this is an ideal opportunity to buy more, and so on. Many people recommend Solona/Doge/Ethereum, but they have already risen and the value of their rise will be less than Bitcoin, and 6 months ago, not many people were recommending Solona.