How do you not compare?

Christina • Wife 💍 Mama CJ 7/3/2016 Noah 7/1/2019💙

I have a 3 year old son and 7 month old son. When my oldest was 7 months he started crawling I find myself often comparing them to each other. My youngest is trying to figure it out he definitely knows how to wiggle around to get to where he wants but hasn’t crawled yet and I keep saying well CJ crawled by now why isn’t he? How did moms of more than one child not compare your children? I keep telling myself they’re not the same little people and it’ll happen when he’s ready and then I think we’ll what if something is wrong. Any advice?