Getting frustrated 😩

My LO literally wakes up every hour at night and then sleeps for 3-4 hours during the daytime. I haven't been able to sleep longer than 30 minutes in weeks now. I get so jealous of all these moms says their babies sleep 4-6 at night. I'm seriously so tired and I can't sleep when the sun is out my body just won't do it. I tried putting blankets over the windows so I can sleep when he sleeps but I just lie awake. I'm so tired I don't know what to do.