In gun terms the "cold bore" shot is the first. Important for snipers since that one has to count and a cold bore behanves different than a hot one, as far as ballistics are concerned. Same for us, different reasons. If you want to improve, keep your bow and 1 arrow handy (provided you can shoot from home or work or something.) Then at odd times, before or after work, before dinner, in between chores, etc. take 1 well aimed shot. Thats all you take. Youre not going to take another. You may not be "warmed up". Pour your entire focus into that shot. Still do your practice rounds and such, but do these single "cold shots" at different times.