Feeling mental.

I’ve seriously gotten a total of two hours of sleep in 48 hours. I’m so tired I feel mental and literally I finally got my son to go to sleep and about 45 mins he’s up again. I’ve broken down into tears, and had to go into the living room to scream into a pillow. I feel like I’m going to die if I don’t freaking sleep I’m losing my ever loving mind. I’m only three weeks post partum so I know it’ll be awhile before he sleeps through the night but dear god somebody help me.