Hands look better than cars

I have been trading cryptocurrencies for 7 years, invested 100,000 in the market, and now I support my family through trading. Here are my hard-earned experiences:
First: Do not worry about how long you hold, but focus on whether the market has reached its peak.
Second: When the price rises, if you are solely focused on pursuing higher profits and are reluctant to sell your holdings at a high price, the result of greed is often "missing the opportunity."
Third: Take profits when you can, and maintain your gains; it requires wisdom and patience.
Fourth: Sell when everyone on the street is talking about "blockchain."
Fifth: Any greedy investor who sees a significant rise will inevitably regret not buying in when the price was low, or buying too little. Meanwhile, the main traders take advantage of the retail investors' itchy buying psychology to drive up prices and sell off.