Everything about invetment is a risk. Holding and trading is a risk, the only way we could avoid thaat is to lessen it by means of doing a research and learning about the coins you wnted to invet with. Doing so lessen a lot of rik not in the coin but in your investment.
That is right. Golden rule of the investing; don't take the risk that you can hold. so basically whatever you do will be risk, either hold or sell. because right after you sell, price can go up and right before you buy it an go down. so you better decide yourself and if it will be a mistake it will be yours ,not anybody elses.