Overthinking everything!

Since I had our little one I've started overthinking things, beating myself up about small mistakes and worrying about what others think of my parenting. It's insane because I've never worried about what others thought. I changed our four month old in the park yesterday and she reached off her mat, grabbed some sticks and tried to put them in her mouth. I grabbed them but forgot to wipe her hands and I feel sick whenever I think about it 😕

Does anyone else get like this?