BTW, the gunsight change has affected me big time. I'm getting it now, but having the sight move with your head bob just screwed me up royally. I guess I was used to compensating for that in the past... and I couldn't hit a damned thing for the first few runs in 1.08. It's coming around now for me but it takes some getting used to.
Ease up, relax, and do something different. Try train hunting, driving M8's or something. Have some fun, and most of all forget about your score!