Use a watchlist to reduce noise
A crypto market can produce endless candidate symbols. A paper trader who watches everything often reviews nothing with enough consistency. The watchlist should force a tradeoff: fewer symbols, clearer setup definitions, better journal evidence.
That tradeoff makes the paper sample more honest. If a setup only works when the trader can choose from hundreds of symbols after the move happens, the process is not ready for a serious review. A stable watchlist makes the misses visible too.