Isn't that how everyone does it?
However: no matter how right I think I am about something, I can almost always dispassionately consider a counterargument. And when that happens, the only way to lose the argument is to start out wrong and stay wrong. Being right to begin with: victory! Being wrong initially, but then changing your mind to become right: victory! You can win an argument by "losing" it. This makes changing my mind pretty much painless, which is nice. It's definitely easier than tying my ego to my supposed inerrancy.
This state of mind took a lot of practice over the course of several years to achieve, and I'm still far from perfect here, but it's definitely worth the trouble.
But now, I've seen significant character flaws in the most seemingly confident of people. I know how fragile, stubborn, and downright wrong people can be. Even en masse. So while I still second guess myself, I now have the confidence to forge ahead with something that feels right to me knowing that I'm not necessarily wrong.
That being said, I am always open to other ideas and listening. If I am proven wrong I am more than willing to accept that.
It's rather like the paradox in saying: 'I ALWAYS lie'...