One of the key ways to ensure your cryptocurrency portfolio will survive a downturn is to diversify your holdings. If you have already been trading for a while, you can consider dividing your portfolio into categories such as ICOs, altcoins, or currencies. While diversification isn't a guarantee of success, it can help you avoid losses and maximize your return.
The main challenge to diversification is that it's not always possible to identify different types of crypto assets. The majority of them are exposed to similar types of risk. However, diversifying your portfolio will help you protect your original investment and minimize your losses. You can also consider short selling a portion of your portfolio to protect yourself from losses.