Welcome to the family! Love to be a resource to you on your long road trip. You will be fine, but keep my phone # handy 'just in case'. We spent 9 months as Tesla Gypsys, 45k miles back in 2014 (before the superchargers were all built out!), and we've got a lot of tricks up our sleeves. See my blog, teslatent.wordpress(dotcom)
Tip one: Don't forget your portable charger in your garage when you leave on your trip.