Whats a good % of winning sessions, and how do you keep your confidence up after a down swing?
In my latest PT database I have played ~7500 hands, 175 sessions with a winning session % of 57.14%. I am running at 14BB/100 so this is during a pretty hot 7500 hands.
As for keeping your confidence up, if you know that you've been playing well I don't think that there is any reason for you to doubt yourself. Just take a break if you feel yourself fuming a little and get back to it whenever you are ready. Things will turn around eventually.