Feeling like a failure - need some perspective

My wife asked if I could handle bedtime for the kids tonight (6yo, 3yo, and newborn) and I completely messed it up. The toddler had a meltdown, older kid wouldn't get in bed, baby was screaming, and by the end I just felt defeated. My wife had to come help and I could see the frustration on her face. She didn't say anything mean but I know she's disappointed. Why do I suck at this? Everyone else seems to have it together and I'm just... failing.