for those who haven't mastered trading, I think holding is better, and when to sell it I think when we are profitable and can match the set targets, but if we haven't reached the target and we want to sell, I think this is also better than us experience a panic sell later which results in losses
When you see a market drop like now then holding is better, in investing and trading we have to be patient, most people panic easily when they see a market drop, in fact now is the time to buy more, and I have invested around $390 to buy bitcoin because I believe the market will soon recover tomorrow or the day after and immediately skyrocket like the previous year.