Please, Explain This Verse to Me

Did I find the reason why my prayers are not heard?

First, read this verse:

“Confess your sins to each other and pray for each other so that you may be healed. The earnest prayer of a righteous person has great power and produces wonderful results.”
‭‭James‬ ‭5‬:‭16‬ ‭NLT‬‬