Tips to get back in the routine once you’ve fallen Gf r rd is off?

I had gotten into a great routine of 5 days a week 530am workouts but lately in the mornings I just feel so tired. Nothing is different I’m not sleeping later or worse or anything. I just hit snooze a few times and then just kept doing it and now when I wake up actually feel tired vs before I’d naturally wake up a few minutes right before my alarm because my body knew it was time.

Do I just need to fight through the tiredness the first few times until I readjust ? Could there be some cortisol deficiency or low T thing happening?

Any thoughts/tips or is the answer just… wake up and suck it up lol