The text you are referring to is
"Whoever. therefore, eats the bread or drinks the cup of the Lord in an
unworthy manner will be answerable for the body and blood of the Lord"
(1 Corinthians 11:27 NRSV). An example might be a KGB agent in the
Stalin era taking communion to arrest the believers. This is nothing
to do with the human sins and failures we all share in.
Where to start? Take communion and tell the Lord you are as bad as any
of us but you still love him and want to share in the work of his
Kingdom. He loves those who boldly trust in his love.