Just keep practicing and practicing, that is what i do.

if you have a tree in your yard just keep going up and down. If you cant shoot in your backyard maybe play catch with someone with a tennis ball, or just stand and look around


the more time you spend in the stand the more confortable you will get.

start low if you have to then keep working your way up
the sooner you start the more prepared you will be when the season opens.