Just now, my phone popped up with a bunch of red dots, I thought it was a snapshot alert, but it was actually a notification about my swap failure and retry... Basically, it was my own careless mistake. I set the slippage to be "safe," but the pool depth was actually very shallow, and I placed the order during those few minutes when everyone was rushing to buy. When the quote jumped, I chased after it, the rhythm was chaotic, and I paid fees twice for nothing.

Looking back, slippage isn't necessarily more stable the bigger it is; when the depth isn't enough, no matter how much you set, it's like gambling against yourself. Also, don't let FOMO push your order timing; it's better to split into smaller parts and wait a bit. Recently, everyone has been complaining about MEV and unfair ordering, which isn't without reason. As a retail investor manually clicking, I often feel like I’ve been "cut in line"... Anyway, from now on, I’ll check the depth first before acting, and don’t panic just because of red dots.