I am 45 years old this year and have just passed 10 years. My current life: my daily routine involves monitoring the market, executing a few contracts, and strategically investing in some spot trades when necessary; I can spend freely without worrying about money, and I have hardly experienced any disputes in business, with very few worries.

Looking back on these 10 years, what I want to say is: the mindset in trading cryptocurrencies is always more important than the technical skills. Below are my practical insights summarized over the years:

1. Bitcoin is the 'big brother': Most of the time, the entire market follows its lead. However, there are exceptions—mainstream coins like Ethereum, which are solid, can occasionally break away from Bitcoin's influence; but altcoins generally cannot escape Bitcoin's constraints, and it is normal for them to fluctuate with the market.

2. Bitcoin and USDT are 'reverse partners': When USDT rises, be cautious of Bitcoin's decline; conversely, when Bitcoin surges, it is often a good time to acquire USDT, essentially locking in profits in advance.

3. The window from 0-1 AM is the 'spike window': Domestic traders can take advantage of this pattern: right before sleeping, set a relatively low buy price for the desired coin, and a relatively high sell price for the coins held. Many times, the market will suddenly 'spike,' allowing for easy profit.

4. Pay close attention at 5 PM: This is a 'key moment' known by experienced players, as due to time zone differences, American investors start to become active around 5 PM, which can significantly influence market fluctuations. I have experienced several major rises and falls concentrated in this time frame, so I recommend everyone keep a close eye on the market during this period.

5. 'Black Friday' can be referenced, but don't rely on it too much: There has always been talk of 'Black Friday,' and there have indeed been instances of significant declines on Fridays, but there have also been Fridays with substantial gains or consolidation, so the accuracy isn't particularly high. There's no need to be overly anxious; just pay a little more attention to the news of the day.

6. For coins with trading volume support, don’t panic if they drop; be patient and wait to break even: If you have invested in a coin with stable trading volume, even if it drops in the short term, there is no need to worry. With patience, you can generally break even—quickly in three or four days, or slowly in about a month. If you have spare funds, you can also average down by buying in batches, which will help you break even faster; if you don’t have spare funds, just wait patiently, as it is highly likely not to disappoint (of course, the premise is not to buy those purely speculative coins).