Active jobs

I'm 5 weeks and have a very active job in a hospital (includes lots of stairs, heavy lifting, several miles of walking a day...) Dude, I am TIRED. How are you guys doing?? My legs feel like jello and I crash when I get home. I feel like my body is telling me to slow down but breaks seem unrealistic right now. It's only 5 weeks! I'm super stoked about my little peanut- just tired! 😁