Recently, I've seen many people excitedly watching on-chain "arbitrage opportunities," and I actually feel a bit guilty... To be honest, many times you think you're picking up a bargain, but you're actually paying fees for others, especially those sandwich attacks where a single trade can cause slippage to explode, making it like feeding others. Currently, the incentives on testnets and the expectations for points have also pumped up everyone's emotions, with daily guesses about whether the mainnet will issue tokens. I think the more such times occur, the easier it is to slip up and chase "quick money." Right now, I just look at whether the mempool (pending transaction pool) is crowded or not; if it's crowded, I do less, preferring to miss out rather than fuel the frenzy... For now, that's it. Take a deep breath.