My biggest fear now isn't the market trend, but staring blankly at a bunch of transaction records at the end of the year... So recently, I simply started to "leave a trace" in advance: every time I cross-chain / exchange coins / claim airdrops, I conveniently record the tx hash + time + purpose (such as "interaction task," "transfer to myself," "sell for USDT") into a spreadsheet, and also take a screenshot, to avoid flipping through browser history and crashing later. On-chain data tools and those tagging systems have recently been criticized for being laggy / potentially misleading, so I no longer trust them to automatically categorize for me; anyway, I clearly label the key transactions myself. To put it simply, less luck, more manual work, for peace of mind.