I started with 500 USD, never liquidated, never stayed up all night, and grew it to 600k USD in a year and a half.

You might not believe the method when I tell you, it's incredibly stupid. But it's this stupid approach that has kept me alive until now.
I'm not an expert, just an ordinary retail investor. The difference is: I have a set of "blindly follow" rules, unwavering.
Three steps:
First, choose coins.
Find the coins with the highest gains in the past 10 days, but eliminate those that have fallen for two consecutive days—that's money leaving.
The remaining ones are the ones people are still playing with.
Second, look at the weekly MACD.
Avoid those with a death cross, only trade those with a golden cross, and only when the first pullback after the golden cross doesn't break below.
That's the real opportunity to make gains.
Third, wait for the daily 50 moving average.
When the price pulls back near this line, look for a volume-driven bullish candle or a long lower shadow, confirming funds are stepping in before entering.
No volume, no confirmation—better to miss the trade than to act recklessly.
Once in, the risk control is simple: the 50 moving average.
Hold as long as it's above; if it breaks below, get out—no hesitation.
Profit-taking rules:
Take out one-third at a 20% gain, another third at 40%.
If the price breaks below the 50 line the next day after buying, don't hope—exit completely.
If it breaks down, don't be afraid; if it returns to the buy point, you can re-enter.
This method has a low probability of breaking down.
It's not complicated. The hard part is whether you can control your hands—no luck, no hesitation.
I've been down this road, $BTC .