@nothingtodo,
I spent a while thinking about what you wrote here and I suppose you are right..
It can be seen a few ways that statement, That it can become over you, or it can be seen as insanity to have an opinion.
I looked back on some of what you wrote and the world must surely look quite strange from that angle.. If any or most of it is true.
There was this guy once, said to me.. When I was miserable, and pondering if I had depression.. 'There is no well'.
That was the worst thing anyone could have said... There is and you are right, opinions are important but not so important they mean more than your self, or other people.
Good luck man, you seem to have some smarts about you, you need to calm that temper though in my personal opinion.
I would only say this to myself, if I was young again to say it, if you see what I mean, it rarely hits home from anyone else in those arguments..
So I say, insanity is indeed a state of being, thank God we do not keep it. Right?