I tried once, and only remembered at the end of the year that I needed to file taxes, but my transaction records were scattered like my browser bookmarks... Basically, if there's no trace left, you'll just be waiting to go crazy. Later, I forced myself: every time I cross exchanges / cross chains / change wallets, I immediately export a transaction history + a screenshot of the on-chain hash and put it into a separate folder, and casually write a note like "Why transfer" or "From where to where," otherwise after three months, you simply won't remember what that transaction was for. And don't believe in some "automatic reports," if the API breaks, it's all holes. Recently, modules and the DeFi layer are hyped up, making developers excited, but as a user like me, I just want to ask: can the statements be clearer... Anyway, I now prefer to go through some trouble rather than get myself angry on the day of filing.