There are days that have the ability to teach you lessons. Most of them are difficult. Naturally.
What you see is not necessarily what other people see. But you have to defend what you see. Otherwise why say anything? And as long as you are a just person, you shall not be very far from the truth. The unjust most of time are correct because they use reason wrongly for their ends. So I say give it to them. Plato says that "he who commits injustice is ever more wretched that he who suffers it." Higher than man's injustices is what the Greeks saw as cosmic justice, ever measuring the bounds of everything, keeping all things together, still, in balance.
That no matter how confident you are, you will still make mistakes. And while common sense tells you to go back and retrace yourself to find out where you made the wrong turn, the challenge is to keep on going at the risk of getting all the more lost. Because sometimes there is just not enough time to go back. "There is a point where you can no longer turn back," says Kafka, "that is the point that must be reached."