Coping with little sleep

Just wondering how you mamas are coping with the severe lack of sleep? I seem to only be able to sleep at night when my baby is sleeping and sometimes not even then 😣 during the day when he’s napping I’ll try to lay down and I just end up laying there awake and sometimes at night I’m just laying there awake as well and I’m exhausted. I don’t understand why my body won’t let me sleep. And I think my baby is going through a growth spurt right now and has been wanting to feed more frequently so less sleep is happening at night 😞 I’m at a loss and have been getting more emotional due to lack of sleep.