New investors often think anything but a continuous rise in a stock is a reason for selling a stock. Everyone of my best stocks has had some down periods, often for extended time periods. But, in the long-term, those stocks have risen way more than 10 times over.
New investors always get wrapped up in the BS that Wall Street sells. This has been going on since the stock market was first established under the Buttonwood tree on May 17, 1792. It's made a lot of brokers rich and "investors" and speculators poor.