What did you find is the best time to take Prozac?

I’ve been taking it for a little over a month (10mg) & for the past like 3 weeks-ish I have been EXHAUSTED. I cannot stop falling asleep at work like it’s constant, I can barely get anything done. My sleep schedule and quality has not changed since starting the med.

I currently take it before bed but thinking of switching to either mid day or morning to see if it helps.

Has anyone else experienced this? If so, any advice?