RE: What to do...
I shoot every day that I can and at a minimum of twice a week. Then as a part of my daily exercise routine, I set my backside on the floor with my legs spread at around 30 degrees. From this position I draw my bow and hold a sight pin on a target mark on my livingroom window . . . I hold this position a nominal 30 seconds and repeat the whole draw and hold process a total of five times.
It is TOUGH to do at first but after more than a year, it is now much easier . . . it is just HARD.
Being a leather crafter I have some Thin Deer hide that I cut in 1/4" X 1/2" strips and wrap this leather strip just below my nocking point and attach my release to the leather . . . this prevents wear on my string. When the leather wears thin, I just replace it.
This is a great conditioning exercise.