You're never truly are on your own when it comes to parenting even if it feels like it at times. As being a human you're constantly learning even if you don't realize it. Just because it's not a big lesson sometimes the smaller ones can be more of an impact than the big ones.
My toddler constantly tests my patience he tries to push me to my breaking point. I get mad but I have to take a deep breath. I know he doesn't understand but sometimes I think he knows exactly what he's doing. I refuse to yell because growing up that's all my parents did. They would yell at me and my brother because they had pent up anger from being mad at each other. I know how that affected me and I refuse to do that to my child.
I am far from the "perfect mother" stereotype that has all of her shit together. My son has pulled some stuff I use to do to my mom and I have since then apologized. Motherhood isn't easy and nobody is perfect some of those moms you see in mommy groups aren't 100% real same goes for some of those mommy blogs.
It takes some time to figure it out and heck I don't have it figured out yet. Just remember don't compare yourself to other moms. Support other moms even if you don't agree with their methods. I wouldn't have any mom friends if I agreed with all of their methods. Thing is you can disagree just in a polite way.
Don't tell them they are horrible because they don't do anything like you do. Every mom does the best she can. Every mom questions their methods daily nobody needs to hear that they are horrible, irresponsible and more. They fight with themselves daily not everyone has the money or the luck to stay home. This is a subject I could go on and on about but, I'm going to leave it here for now.