I try to work out in the afternoon, but I just can’t—my body fights me the whole time. But when I work out in the morning, I feel tired for the rest of the day. What is this curse?!

I’m guessing I should just work out in the morning until I build enough stamina so I don’t feel drained afterward. In the morning, I’m full of energy at the start, but then I feel completely beaten after the workout. Does anybody else go through this?