Well, I cant say what you should or shouldnt do, but I can share my opinion with you) For myself I decided to buy more crypto at the moment when its price is decreased to get a good profit. As a rule, after fall the growth starts, and you can sell your crypto in several times more expensive. It is important not to surrender to panic when crypto experiences a short-term fall of price, and wait for a right moment. The most profitable and attractive coins among investors are bitcoin, ethereum, ripple, and other crypto from the top-10 list on capitalization. Choosing several coins for investment, you're getting more chances for benefits. While one coin is going down, another can increase twice or more.