Holding period isn't easy for everyone. Some people have hard time waiting for it, and because of that we need to realize that things cold be very different. If we could end up with a much higher price in the future, and we fail to wait, then we will regret it.
So, the best case would be just assuming how this could change and how we could make more money from this. If we want to reach to a higher level while making a profit, then we need to be able to wait.
Panic, fear, anxiety, worry, none of that will matter and we will not make money from them.
Those are emotions that will cause you to lose money when you could profit. Which is why you should ignore those feelings, and focus on just holding no matter how bad things look.
Some people, even if they do manage to hold, choose to sell immediately upon seeing a small profit and realize their profit.
I can't blame them for taking the profit, but it actually means they don't believe Bitcoin will achieve much more or that it will become more valuable in the future, and they sell immediately out of this concern.
So, worrying makes you lose more, that's true.