Hi Robin,
I find these days I can only get near my best by adopting the right mental attitude and/or having a "Lucky round" You know when the ball always bounces in your favour or seems to be going nowhere but in the hole. Funny thing is they seem to happen together, a good head day brings a good luck day and visa versa.
I have been studying and working on my mental game recently and I am amazed at the results (much better than buying a new driver
) I try to keep the clutter and chit chat out of my head when playing.