If you want to make money in the crypto world, the first step is to understand your own playing style. Spot trading, contracts, quantitative tools—there's no absolute good or bad; the key is to find a rhythm that suits you. Many people end up just being leek farmers, and the reason is simple—only blindly following the trend.

Over the years, I have summarized a set of practical rules, especially for strategies that double small funds. The core is six strict rules.

**The limit of a sharp decline is 9 days**. If it falls for 9 consecutive days, the 10th day is often the end of the market maker's shakeout. At this point, it's actually an opportunity to enter, but not to hold blindly; instead, follow a methodical approach to bottom-fishing.

**When it rises, sell half first**. Many people get excited after the coin rises for two days, which is wrong. After two days of continuous rise, you should reduce your position by half, because ultimately, money in the crypto market is made by selling, not by holding and clutching.

**Signals for breakout from sideways trading**. If a coin stays flat for 6 days and then suddenly has high volume on the 7th day, this is often a signal that the main force is about to start. At this moment, decisive follow-up is the right move.

Another easily overlooked factor is **time cost**. If you buy a coin and the next day, after a trading day, you haven't even earned back the transaction fees, it's better to cut losses directly rather than repeatedly hesitating. Wasted time is the biggest invisible killer.

**Ranking patterns are also worth paying attention to**. Coins ranked third on the gain list are likely to jump into the top 5, and those ranked fifth are likely to jump into the top 7. But remember, 99% get stuck waiting to break even.

**Be cautious if a coin rises for 5 days straight**. If a coin has risen for 4 days, around 3 pm on the fifth day, a wave of sell-off often occurs—this is a routine of quantitative machines. Knowing this can help you avoid many risks.

Besides these tactics, there are three principles that must be engraved in your mind: dollar-cost averaging can lower the average cost, long-term holding tests your patience, and risk control is the prerequisite for survival. Opportunities are available every day; whether you can seize them depends on your execution.