Panic selling has always been something that is within us, the only difference is how big our panic is, but other than that, don't forget about greed, greed and dissatisfied are also very common for investors, when the price of the coin has gone up very high, but they still don't want to sell it because they are still dissatisfied, and finally the market is bearish before they can selling it
Motion can really affect a trader or investor's faculty to think of the right decisions when the market price starts to shake bringing about fear of one losing is already made profits from getting minimized. Although it's very hard to control emotions especially if one is trading or using the money they can not afford to lose causing over thinking and which can lead one to make a wrong decision.
It is very necessary for one to make use of risk management and trading or investing plan to enable us to avoid unnecessary thinking or fear of lose when the market by price is ranging. Our emotions can lead us to make wrong decision if our mind is not prepared to take risk that can have both advantages and disadvantages to out output.
Well, if we let ourselves carried by our emotions, then it will not lead us into our goal but rather pull us down and commit mistakes again. Although being emotional and even greedy when it comes to investments profits, is a human inborn but if we start controlling it then somehow we can minimize committing mistakes and losses.
For me, the best advice i can give is to set a target price when to buy and sell. If you have your plan and definitely your goal, then even if you are struggling to control your emotions but as long as you stick to your plan then you will never be in a huge loss.