Honestly, the thing that drives me crazy the most every year isn't the market trends, but tracking transaction records... Especially since the NFT days, switching platforms and chains all the time, changing royalties, pulling liquidity, and the ledger just shattering into pieces. My current clumsy method is: for every large transaction (buy/sell/cross-chain/claiming airdrops/lending), I put the Tx hash, time, counterparty, and notes into the same table on the same day, then casually download a CSV of the CEX trades/deposits and withdrawals, and upload it to the cloud drive, creating folders by month—don't think about filling in the gaps at the end of the year.

I'm also not sure if the standards will change again in different regions, but at least leaving a trace can really save your ass. Recently, everyone’s been talking about modularization and the DAO layer, developers are excited, but users are completely confused; I’m more straightforward: the more chains and bridges there are, the easier it is to lose records, so it’s better to organize early. Anyway, just make sure to clearly document “what I’ve done,” so that later on, there’s something to base the reporting on.