I've found second time round I've adopted a completely different parenting style purely because there completely different children ds was very laid back and easy so we barely had to settle him or worry about naps because he would nap anywhere he would eat anything and was also completely formula fed and I had severe PND so dh did a lot of parenting
With dd she is breastfed ,very clingy so I rock her cuddle her or feed her to sleep she will not nap anywhere she has to be removed from any stimulation she fusses and cries a lot I do slit if the parenting due to her being bf but I do have PND again but not as bad
I'm finding I don't do as many outings second time round because it's hard getting 2 kids out and about

I think the main difference is my PND parenting and my non PND parenting I can't wait until it passes so I can go back to being a better mum PND makes life so hard I struggle to get healthy meals on the table I'm not as patient or loving everyday is basically surviving