What to do when feeling fatigue?

Hi I'm 21F, I work full time (40 hour week). I've been feeling extremely fatigue lately. I've had MS for almost 5 years now & over the last year it's been affecting me a lot more than it used to.

Any tips or tricks to help with energy? I drink 1 cup of coffee every day. Caffeine increases my anxiety levels so i try not to consume a lot.