Any thoughts ladies on long distance dating or advice on successful long distance dating?

I’m talking and getting to know someone I’ve been friends with for some time online. We know a lot about each other’s lives, have video chatted, share a lot of similar interests and values. From what I can tell he seems like a HVM: he’s an O2 in the Air Force (which can tell you a lot about a man’s character since my dad is also military), responsible, intelligent, kind and respectful, etc. We have a great friendship foundation which I really appreciate.

I plan to visit him in Japan (was already going out there anyways before we talked about taking our relationship further) where he’s currently stationed and only recently did he open up to me romantically and did we openly discuss our interest in each other. It just seems like an obvious good choice and I like him a lot. BUT we’ve never met in real life and I don’t want to get ahead of myself either or fantasize the situation too much.

I’m totally fine with the idea of marrying someone and being a military wife, traveling and being stationed in different countries and all that...but how do you get to know someone via long distance and how do I maintain myself as a HVF during this dating process? Lots of questions, thoughts, and doubts. Advice welcome 💕