Go when you feel up to it, or feel like it. Remember, this is supposed to be fun. I have killed deer at 10:30 in the AM and 1:00 PM so go when you feel up to it. I am glad to see that you are still trying to get out and hunt. I have had 6 back operations and I still try to get out when I can. I can't hunt like I used to but i still get out there and enjoy myself and I occasionally bring home some venison.
Bob