Everything requires courage.
Entering this market, if your mindset is overly cautious, you'll spend all day worrying about not losing money, thinking this won't work, that won't work, what if I fail doing this? A baseless fear of failure will prevent you from achieving anything, just like playing Mahjong, hesitating while discarding tiles, choosing back and forth, and ending up with a Kong on a cannon!
Only through practice in the world can one gain knowledge. My conclusion is that luck often favors those who are a bit braver. So what is bravery? Bravery is the willingness to face failure, unafraid of failure. Learn to take advantage of opportunities, do the right things with the right people, and prioritize choices over effort!