It is natural you panicking to selling your assets when you noticed a sudden decline or drop as a result of fud and other factors too more especially when you are holding for a short time.
No investor would be comfortable watching while their assets value decline without taking profit from it or better still taking back their capital while they can to avoid loss.
This is the experience of every newbie.
No one wants to lose money when investing, so my first priority is to make a profit rather than a loss. I also keep an eye on the price and hold an investment for a period of time to see if it is at the right level to sell for a profit, but I don't mind doing so for an extended period of time because doing so is also a part of my investment strategy.
I'm trying to convey that as an investor, you should keep in mind that holding for a long time must be one of your goals before investing since there are times when the price will be down and if you sell it, you will lose, so you stay for a while to avoid being lose.