Learning from my speaking mistakes

I used to get so frustrated when I messed up a sentence while talking. It felt like a total drop in confidence every time I hit a wall with a word I didn't know. Lately I started recording my practice on my phone and listen to it while I walk. I find the spots where I got stuck and write them down. It makes the unknown parts feel easier to fix next time. Does anyone else do this or am I overthinking it?