Tips to Increase Energy?

I’m 7wks along and SO exhausted. I get home from work and truly just want to take a shower and go to bed. I have responsibilities I need to keep up on after work, including the energy to keep exercising!! I’ve cut back caffeine from 3-4 large cups a day to just 1 regular coffee in the AM. What has helped you all get through this trimester and keep up some sense of normal? Also, our friends don’t know yet so I’m just a sleepy blob when we’re together!