Crypto tax question

To start, I know none of the advice given hear is “legal advice.” I’m just looking for opinions. The last two years I have sold some crypto for a loss of less than 1k, so not a huge tax advantage. My taxes did not reflect any sales, even though there were no gains. I know you can use tax losses to your advantage but I didn’t want to deal with the annoyance of entering all the info into a tax service. So here’s my question… if I say I DID sell some crypto this year (still for a loss) is there any chance they would look into previous years and get pissed that I omitted it from my taxes the last two years? Again, no gains any of the years, but was curious as I kind of want to start “flying straight.” Thanks in advance for any insight on this!