I'm not very good at explaining those high-level on-chain structures, but recently I've been a bit anxious about the "queuing" in the mempool... When there's congestion, you click confirm, but in reality, your transaction is just lying in a bunch of pending packets, and miners/validators prioritize picking up transactions with higher fees, so yours might get stuck for a long time. What's more annoying is that being stuck doesn't mean safety: the price has already changed, slippage has triggered, or even your lending position has hit the liquidation line, and you're still waiting to "get on board." Now, for urgent orders, I first think through the worst-case scenario: better to cancel and resend, or just not chase it; anyway, risk control thresholds are more reliable than emotions. Recently, new L1/L2 projects are boosting incentives to attract TVL, making the chain even more crowded. It's no surprise that veteran users complain about "mining, taking profits, and selling," as everyone is fighting for the same path. For now, just leave it at that—don't clash head-on with congestion.