Point 4 is exactly the issue we have with this team (as compared to the Lyon/Stewarts team of 5 years ago). We dwell on the negative, whereas 5 years ago we crack it and use the negative. How many times did we win ground with our defence? We'd get a bad call, drop a ball, and in the next set the opposition would not make 20m. Matai, Gift, Watmough, Kite.....they would launch into the attacking team. And they would take out their disappointment on them.
You can see with our current team (and unfortunately Jake is one of the worst) stewing on a bad decision. 5 mins later we still look distracted. Now not picking on Jake as he is my favorite current player, and it shows how much it means, but he needs to compartmentalize.
I hate Shane Warne, but the one thing he could do and what made him great was to compartmentalize. Things going bad off the field? Put in a box in his brain and move on. Bad ball....bad over....move on. Shove it away in a box and concentrate on the future.