I am all too familiar with such a feeling. Often wondering what else to say in a conversation that has naturally come to an end. I'd always felt that a cure for social awkwardness didn't exist and that in time my confidence would simply turn into arrogance and I wouldn't give a monkeys what people thought of me.
The other day I was asked if I wanted to go on a day trip to Brighton. This is normally the sort of offer that I shun as I like to stay well within my comfort zone, and this felt, well...outside of it. However, born out of the sudden frustration with monotony and lack of real human experiences, I instinctively agreed, and what a decision that turned out to be.
At present, state education does not match up to private schools in terms of academic provision. Until they do, parents who are lucky enough to be able to make the choice must make a value judgment. However, once you've made your choice, don't let your decision distort your take on reality à la Murray and O'Farrell.