how are you working

I just returned back to nursing (i’m an LPN) and i’m not sure I can handle it at this point. I just got diagnosed with GD yesterday on my birthday. I took today off just to try and acknowledge it and try to take time to myself. I have a 4 month old baby and my fiancé works. I just don’t understand how I’m supposed to work when I feel like I can barely keep my eyes open or even a conversation going.