If you are not currently doing so. Try this grip out. It will help prevent you from torquing the bow upon release which can cause inaccuracy.

I'd work as much as possible at 20 & 30 ydsuntil you are consistently hitting well then try moving back to 35. It's a big jump from 30 to 40 yds. Sometimes when a distance is giving you problems you are better off moving in and getting your confidence up at 20 yds. My first few years I never shot past 30 yds in practice and limited the shots I would take to that yardage. When I moved back to 35 and then 40 it was a much smoother transition. I always believe in practicing further then I'd shoot but with a new archer that's the one time I disagree with that. Until you get good mechanics and consistent it's the wise thing to do even if you see others shooting further.

It's tough to do sometimes but it will make you a better archer in the long run. Think of it like shooting close to the rim until you make all your shots successfully and then you start to move back to the free throw line. Or, playing from the whites even though you'd like to play from the blues in golf.