I do that sometimes myself, when I notice myself doing that I try to take a break for a while (10-15) minutes then try a few more arrows if I still do the same I just call it a day. will do beter next time. That what works for me but everyone is different. Mixing up targets also works too we have these hunter orange business cards at my range so I set one of those up and fling a few at that makes thing interesting. Good luck working through your over consentration woes.