moms of more than two help!!

Im currently 6 months pp from my second daughter. Im a SAHM and my husband works vey long hours. 4am-6,7 or 8 pm. How do you mommas do it with more than two?! I feel like im losing my mind and cant even think straight. My oldest is 2 and they are both needy and im constantly back and forth between the two. I can’t catch a break. Share your secrets pleaseeeeee! I would like more but idk how I would even handle it im out numbered now 😩