I know I should go, I want to go, I will feel better if I go, but I’m not feeling it.

I’m tired, I wouldn’t get into it, I lack the energy.

Is it reasonable to skip exercise because of lack of sleep ?

I don’t think it is reasonable. I think it’s an easy out.

Why ?

Because exercise will generate energy. Because exercise will help me get a good night’s sleep tonight, so I will have energy tomorrow.
Because habits need repetition to grow strong.

I will write more when I get back from the gym