Recently, many people have been talking about "sandwich/arbitrage opportunities," and honestly, the small profits you see are often just paying others transaction fees and serving as liquidity tools. When the mempool is congested, slippage is high, and MEV bots are faster than you by a mile, you think you're bottom fishing, but you're actually just helping others lift the price.

What I fear most isn't losing money, but losing control: even if you press confirm, the actual transaction price, routing, and gas fees can skyrocket beyond your control, and that feeling is more disgusting than losing money. Anyway, I now prefer to make fewer trades rather than chase "cheap" times during congestion; if I want to switch, I split orders or set slippage limits, and if I fail, I treat it as tuition and review.

By the way, hardware wallets are out of stock, yet there are still a bunch of people clicking on phishing links... it's just ridiculous. Don't keep staring at how others arbitrage; first, don't give yourself away.