Crypto can deliver results that are not predictable and sometimes even predictions that good can be bad and wrong when applied in crypto. It is true that the experience will give this learning and to be aware of in order to get maximum results.
Not just cryptos, all the markets and investment opportunities are unpredictable hence you need to prepare yourself to approach accordingly. Yes, the basic principle of effect investment and asset management is, investing only what you can afford to lose. If you are following this principle then you will never worry about the unpredictable nature of markets. You can simply hold them as long as you may need your money back. When you are planning to get back your money, if your researchers were good then you will be in profits.
Here we must note, if we have invested only with highly reputed and actual project-based coins then we will never worry about the current downfall of crypto markets. Because, we can be sure about bouncing back of those coins at any time. But, some coins will never bounce back as its projects will not be having any further development.