There's a simple answer: just don't report the 1099-K because you " just sold old clothes and stuff you had around the house". Unless you sold any individual items for more than your cos basis (what you paid originally paid for them).
References:
https://ttlc.intuit.com/community/tax-topics/help/do-i-have-to-report-personal-items-that-i-sold/00/...
https://ttlc.intuit.com/community/state-taxes/discussion/i-live-in-illinois-for-2021-my-wife-was-sel...
