It is all about preparation - preparation is about technical, mental and physical preparation. In terms of what really happens, it is a mental issue and one that impacts many clay shooters - it is easy to say move on, forget about, take one target at a time, but how do you do that. Even the words "don`t worry about it" reinforces the negative. Many shooters are too in the moment and actually too focused without giving a time for a mental break, in sporting in particular there is the classic hit the first pair and then question how you do it, so you go from sub-conscious to conscious.
On the preparation front, areas such as pre-shot routine and retaining that are important, visualising how you are going to shoot and visualising your routine, so dry training running through exactly what you do, working out the hydration plan and the nutrition plan for the day. I recently saw people`s scores fall away at the White Gold 150 birder on the Sunday, cloudy start, but the sun came out and people were not prepared for queues and the sudden heat, plus it was 150 targets.
In this instance what I would be advising is to have a consistent pre-shot routine that you always follow, people should be able to watch you shoot and not know if you have hit or miss - if emotions are shown, then you are not working subconsciously . Get a routine, stick to it and then hit or miss you are not thrown by a miss, and actually you become more consistent and you won`t carry misses round with you.