I'll have other people tell me I'm doing it wrong
I know this is for first timers, but don't worry. You will have that. Don't worry about it. I had my mother telling me I'd murder Liebling with my parenting methods. He's still alive and psychologically sound, so please don't fret about the opinions of others. You will always be wrong in someone's eyes.

The plus of being a parent is that your child hasn't experienced any other parenting, so can't complain. And if they think you're an OK parent (pre-teen, they won't admit that as a teen!) then who cares what anyone else thinks of your parenting?