Just venting: Why do some moms, especially first time moms think they know everything?! (By no means…

Just venting: Why do some moms, especially first time moms think they know everything?! (By no means am I talking about anyone on here!) I'm pregnant with baby 3 and your baby isn't even 2 yet! I'm just so close to snapping. This baby sitting job might be coming to an end, I've gotten tried 4 or 5 times (maybe more if I actually sit down and count) in 2 days, I can't deal! 🙄😒😒😡😡👊