Recently, I've seen a bunch of people talking about block builders, bundles, making it seem like retail investors who don't understand will get completely wiped out... I personally feel that knowing "it will make the price you see not necessarily be the price you can execute" is enough. Basically, someone is packaging transactions together, and the order can still be manipulated a bit; placing a very thin bid, or chasing hot trends impulsively, slippage / getting sandwiched is quite normal, don't always blame the wallet or the exchange.

My current approach is very simple: small positions for trial and error, avoid chasing when the chain is congested, prefer to earn less; if I really want to push, I set a tolerable loss in advance, and don't change my mindset at the last minute. As for testnet incentives, points systems, everyone is guessing whether the mainnet will issue tokens, I also get itchy to try a few times, but I default to thinking it might never give anything, so I stay more calm.

I still believe: slow down, do less, and live longer. If I lose, I write a review post face-to-face, for now, that's it.