The worst and harshest critics of a new or young mom is another new or young mom. We all do it different this parenting thing. As long as the child is safe and thriving just let it be with the judgements.
The only logical reason for why you seem to hate that I'm a nicer person than you'll ever be. It seems to be that you are a jealous bitch who always wants to be the best well you aren't so please leave before someone hits you.