Recently organizing transaction records, I sincerely recommend not waiting until the end of the year to fill in the gaps, that pain is just like losing a nonce on the chain... My current habit is: after each large swap/ cross-chain/ claiming airdrops, conveniently export a copy of the exchange statement, label the on-chain address, and take a screenshot to note what it was for at the time (borrowing, providing liquidity, earning incentives), otherwise later all I see is a string of hashes, and I can't explain it clearly myself.

As for that set of “shared security + compounded yields” staking, which has recently been criticized as a copycat, I can also understand from a tax perspective: is it considered income, a currency exchange, or deposit interest?
Anyway, first make sure to note the source and path clearly, don’t rely on memory.
What I’ve learned isn’t a skill, but that: the lazier you are about recording this, the earlier you should do it.