Work day

Can anyone give me tips to help me through an 8 hour work day? I'm 9 weeks and I just feel like a train had just ran me over. I go to work at 6am and I get overwhelmingly exhausted by 8. I work at a 4 star hotel in the food and beverage department and they expect me to just run around the place and always keep myself busy but all I want to do is sit down and take a nap. And naps for me right now last all day 😂 I drink so much water. I try to help out and keep on my feet but ugh it feels like I just want to quit so I can sleep my life away. Maybe I should take a two week vaca and get through my first trimester