hold for big profit, it will touch 50 Again

Guys… I am feeling very confused right now 😔. A little while ago I bought $RIVER , and now it is showing about $550 profit 💵. But yesterday this same coin gave me around $320 loss, and at that time I felt really bad because I lost money. $RIVER Yesterday many people told me to close the trade because the loss could become bigger.I was very worried and thought maybe I made a mistake buying this coin.$RIVER Now suddenly it is giving profit, and I don’t know what to do. Should I close now and take the profit, or hold and wait for more profit? I am scared the profit might turn into loss again.