Some of it was learn as we go. I think mistake came in with knowing cases were increased and easing off on some things anyway. App tracer - some mistakes there. Etc.
I was an earlier mask wearer - was requested but not required at a clinic and I did so some other locations with people likely to be more at risk that I was. Gloves, didn't really do any extra than normal, which wasn't nothing. Groceries, some of them not all. I was very thankful when that was discovered to not be a big mode of transmission. I am still more careful with hand washing/sanitizing than I used to be. I used to be relatively good with that before, but I almost always have one with me when out now, whereas before it was sure, there's a bottle in my purse, but not also in my car. The masking is a part of that though. In general touching public touch points and then my mask doesn't seem like a great idea - not just COVID.