Being fashionably late is never a good feeling, and can be stressful!
I feel like the key to not overthinking it, is preparation ahead of time - almost creating a game plan for yourself, especially if you have a specific event coming up.
Maybe do some research ahead of time, and have a few go-to outfits in mind, that way when the day comes you can just execute the plan rather than come up with something new! You could even prepare and lay out the outfit the night before, down to the accessories so there's no last minute decisions.
That being said, I do enjoy the occasional lazy, comfortable day where style takes a backseat - but that's a rare occurrence as you know how great it feels to feel put together!
Let's hope the humidity stays low and doesn't ruin anyone's carefully crafted looks - and if it does, we have backup plans in place!