Just educated myself again: thinking "just a small amount, market price casually," and ended up paying the tuition fee for slippage. The pool looked like it had volume, but when I placed my order, the depth was as thin as paper, and the price was pushed away by myself... Honestly, it’s still a rhythm issue, rushing to enter the market, too lazy to split the order or set a limit price. Looking back at the transaction details, it was executed in two or three parts, separated by dozens of seconds, and the cost difference was quite significant, which was pretty painful. Recently, hardware wallets are out of stock, phishing links are everywhere, and I also took a moment to review my frequently used address whitelist and signature pop-ups. I'm tired but still here, at least not paying two tuition fees in the same day.