My parents used to use AAA TripTiks to plan our trips. Granted this was decades ago in the olden days of paper maps, so I have no idea how good they still are, but apparently they still exist. Worth checking out.
I did a cross-country move about 8 years ago, and just planned each leg of the trip separately. I chose where I wanted to sleep, planned the route to get there, and then did the same for the next leg. There’s really no wrong way to do it as long as you connect the dots and go the way you want to.
I’m also using paid Proton VPN and have issues posting comments every day. If I stick to non-American servers things generally work, but if my random connection picks anywhere in the US, my comments won’t post until I switch and switch and switch and find a random server that works. I’ve rage-deleted quite a few comments after they refuse to post. It’s really pretty frustrating, but I won’t stop using my VPN to make Lemmy work better.