First, understand the price action. Look at the daily, weekly and monthly support and resistance to determine trend. Second, always have an entry and exit plan. Third, taking profits is never a bad thing.
My favourite are these shrimp floss rolls. The spicy ones remind me of my grandmother who would bake fresh ones every LNY. She's gone off to a better place now and eating these brings back lots of memories.
I think "Caught up in a down trend" is worse for me because I bought $Tesla Motors(TSLA)$ at $300 all because of my friend telling me to buy. I lost two-thirds of everything and felt so depressed when I kept looking at the red numbers. It was a very painful lesson that I need to do my own analysis and not be swayed by my friend. Turns out he bought when it was lower and sold shortly after I bought because I took too long to decide buying $Tesla Motors(TSLA)$. By then, the rally was pretty over due to $Twitter(TWTR)$ fiasco. Now all I see is a painful 💔