Exhausted but cant sleep post partum

Anyone else super tired and low on sleep but when you get a chance to nap you cant because you're worried about your baby and just want to stare at them? She was born thursday and had pretty bad jaundice and I've had to constantly be watching her and now that I have a chance to nap now that were home I cant fall asleep as I'm worrying about her and miss her. I know I cant keep goong on 3ish hours of sleep a day but cant make myself fall asleep.