Sincerely recommend not waiting until the end of the year to think about taxes. I almost collapsed last year due to my own trading records... For now, keep it simple and straightforward: every deposit, withdrawal, currency exchange, and on-chain transfer, just leave a "proof package" (screenshots + tx hash + notes at the time). Not perfect, but it should be traceable. For me, the real "signal" isn't whether I made a profit today, but whether I can clarify each transaction two months later: where it came from, where it's going, whether it's considered a trade. Recently, the disputes over NFT royalties also highlight the issue; when the rules change in secondary markets, the transaction flow logic gets messy, and in the end, the person doing the bookkeeping suffers the most... Anyway, I’d rather do two fewer transactions than stare at a bunch of addresses at the end of the year.