If you panic, you lose.
But if you stay calm and you have it planned and don't have to be hysterical, you're in good hands. You know the diamond hands are for real on this situation of the market.
Right but most of people's carried losses only to panic sell if when see market is going down and can't control their mind but also it's true that very hard to stay calm to keep holding a coin for long time, is someone had extra money who can keep it invest in long term but not possible to everyone.
Then you should opt for holding rather than trading. A lot is happening in the market and if you are not such that is deeply rooted in it to know what is actually happening, panic may set in, and before you know it, you might have made decisions that you will regret. Trading is technical, that's why we should be technical with it as well, we should always learn the behaviour of the market in every situation we see, so that we can be appropriate and not base our decisions on emotion or our instinct. The two had made me lost/missed bitterly in the past as the case may be, but now, I give the decision-making power entirely to my trading chart and not what I feel would happen or how I feel it would happen.
As traders, we should learn and know the difference between the trend, the retracement/correction, the range, the channelling/sideways market and so on. In every one of these conditions, any trader can make a mistake, but if we are well-informed, clever and patient with our analysis and decision-making, we will surely get to know what the market is actually resorting to doing instead of liquidating when we should not. Also, the use of stop loss is good to avoid mistakes like this and this must be smartly placed after enough analysis to avoid mistakes.