I shoot pretty often; almost every day. I don't feel a need to shoot lots of arrows, and a few rounds of a few arrows at my target set up is often enough (though it usually turns into a little more than that). I am also blessed with the opportunity to go for a walk with my bow at least a few days a week, and prioritize that roving time & practice. Number of shots varies, and I am finding that less shooting, with more time in between to walk and keep myself relaxed and attentive, is beneficial.
On the target, I usually allow myself a few shots to "warm up" and get my form and focus in line. When I'm roving, every shot counts. I've taken to walking for a bit before my first shot to gather my concentration, and doing more walking than shooting. Still, I get a good number of arrows, at different yardages and angles, each time I'm out.
That constitutes my practice, which is also my love of shooting.
Like Arne, I believe quality is more important than quantity, and if I'm not feeling together about it physically or mentally, would rather take a day, or two off. As I'm still building my form and muscle memory, I'd rather not miss more than a couple of days.