You sound like you are where I was last year and earlier this year. What I finally realized is that as I have grown older (I'll be 55 this year), my strength has slowly diminished and I was ever so slowly becoming over bowed. Shooting was no longer fun and I didn't look forward to shooting anymore and when I did, my arrows were all over the place with little to no accuracy. Dropping from a 64", 58# longbow, a Green Mountain Stingray, a bow I love, to a 58" 51# Robertson Vision Falcon and the fun come back. Not just a new bow but a lower poundage bow.
I am now looking forward to shooting and hunting with my new bow. The sad part is I will now have to sell my beloved Green Mountain longbow. I don't want to keep it as a wall hanger when it could make someone as happy as it has made me over the years.