How to update tex packages installed by TexLive?

From: tim.katz@yahoo.com <tim.katz_at_yahoo.com>
Date: Wed, 02 Aug 2023 03:42:24 UTC
Hi All,

Please advise how I should update the tex packages installed by TexLive.  
I understand that I can 't use tlmgr to update itself, and if I try to use it to update installed tex packages without doing so, I receive an error which states "tlmgr itself needs to be updated".

Thanks,Tim