Just got educated myself... Seeing someone on the chain making large transfers again, and the exchange hot and cold wallets moving, being blown up as "smart money," I got a bit itchy and chased right in.

The depth was much thinner than I expected, and slippage was like adding a tax to myself; I was stunned at the moment of execution.

Looking back, it’s: I placed my order too hastily, eating up liquidity like I hadn’t eaten in three days.
Actually, I could split it into several orders, try to test the waters first, see if the order book can handle it before adding more; or just set a price and wait, don’t follow that kind of "next second surge" emotion.
Honestly, when the depth isn’t enough, the more you want to be quick, the easier it is for the market to "arrange" you.
Next time, I plan to check liquidity first before acting, at least stop using FOMO as a strategy.