Mileage anxiety

I work at a Chevy dealership, started leasing a Blazer EV LT last week. I drive it back and forth to work, we have a stage 3(correct term?) charger here at my work I can use for free, so it seemed like a good choice as my daily driver(12-15 miles per day). My problem is I get so much more anxiety over the mileage range/battery level of this vehicle then I do any gas vehicle Ive ever had. This is my first full EV, we own a Carolla hybrid as well. My wife is going to a convention next month thats 165 miles away. I am nervous for some reason that they won't make the drive to their hotel(hotel has a charger). I am sure it sounds silly to most of you but I am having major anxiety about it.

4 adult females with a suitcase or 2 drving 165 miles. Should be fine with 100 percent charge right?