In the past I believed it, and was sad when "the flesh was weak" and I took actions severely suboptimal for that belief set. I wish I had only believed I believed it. I guess it's possible I only now believe I believed it and in fact in the past I merely believed I believed it, but I'm guessing no.

Humans are well known to be terrible at taking actions that aren't severely suboptimal for their beliefs, and for holding contradictory beliefs, and for holding beliefs which imply actions which are suboptimal for their other, contradictory beliefs.