Just almost had a crash: tested a network to earn points, accidentally copied the mainnet address with a slip of the hand, luckily the wallet popup warned "Network mismatch," and I nearly had a heart attack... After experiencing a few crashes, I’m especially sensitive to this kind of "practice."

Now, many testnets are no longer just practice; everyone is rushing with expectations, and time, gas, and attention are all considered costs. My stop-loss is pretty simple: once I start obsessing over things like "unlock calendar" or "will staking unlocks cause a dump," and my emotions get the better of me, I just stop for two days—no chasing progress; then I set a limit for myself, at most messing around with one or two projects. More than that is like playing the lottery. Anyway, even if the points are tempting, it’s not worth a mis-authorization or signing mistake. For now, that’s it—keep the cold wallet close.