There is a difference between being firm, obstinate or a pig-headed fool. But circumstance is the determiner of that difference.
Everyone thinks their opinion matters, but few folks or opinions are really worth the effort to argue about.
A farmer doesn’t bother telling his pigs that their breath stinks.
the Porcine Oracle
The most productive course may well be to just maintain an unusually obstinate effort to think clearly. Doubt yourself and doubt others often. And as a matter of course, change your mind if your gut or your goodness or your regret compels you.