Biggest mistakes when moving crypto between wallets/exchanges

For me, it was realizing that I just dumped around 100 bucks on the wrong network. The sheer moronity of it still haunts me but lesson learned I guess lol. I don’t use crypto super often, so that’s one reason for that, but now I just double-check everything, tags, chain compatibility, address errors, anything really. Still feels a bit stressful after that, like I’m one click away from sending my money straight into the void. What are your worst screwups? Also wonder if this gets trickier when moving between different platforms in general, like wallets, exchanges, services, and is there a way to automate this? Because right now whenever I transfer coins to mybookie mostly, there’s always this moment of doubt. Like, oh shit here we go again)