Have you tried exercising before work? I've been doing 1hr to 1.5 hr runs before work once a week and I'm always relatively sleepy by the time the sun goes down

Have you tried exercising before work? I've been doing 1hr to 1.5 hr runs before work once a week and I'm always relatively sleepy by the time the sun goes down those days, as long as I haven't had caffeine after 2ish pm.