Why can't i go a session without making a mistake?

[Bob T.]

If you went a session without making a mistake, you would have stopped learning. Everyone makes them, and if they think they don't, its only because they don't recognize them.

The trick, is to not repeat them especially in the same session, where people might take advantage of them, AND to try and remember the mistakes you made in this session, so if a similar looking situation occurs, you can take advantage of your opponent trying to take advantage of the mistake that he thinks you are making.

I like to think that when I play well, I win, because I play well, and if I don't play well, I win because I don't play as poorly as my opponents think I do.