At two in the morning, my phone kept vibrating. It's my little brother from Zhejiang, his voice trembling: "Uncle An, I need help! I opened a full position of 10,000 USDT at 30x leverage, and it dropped 3 points, how did I get liquidated directly?"

When I looked at his trading details, I instantly understood—he went all in with 9,500 USDT without even setting a basic stop loss.

Many newcomers in the crypto world have a misconception that going all in means 'being able to hold on', but that's not true. Improperly using full positions can be even worse than using isolated positions.

In fact, liquidation has little to do with how high the leverage is; the core issue is greed in position size.

With a 10,000 USDT account, opening over 90% of the funds means that any slight reverse movement can wipe it out; but if you only enter with 1,000 USDT, you can withstand a 50% fluctuation.

I've been using full positions for half a year without ever being liquidated, and I've doubled my money, just by following three iron rules: never exceed 20% of total position in a single trade, limit losses to no more than 3% of total position per trade, don't open positions during fluctuations, and don't increase positions when profitable.

Uncle An advises: surviving in the crypto world is more important than making quick money.

Full positions are meant to give you room for error, not for you to gamble your life on. Stick to the rules, go a bit slower, and you might go further. @安叔复利之路