Long distance relationship advice

My boyfriend and I have been dating for 4 years, and today he left for college. I leave in a few days, and our schools are 10 hours apart from each other.

We’ve never been long distance until now, I just don’t know how to really do it ? But we both know we want to.

We were each other’s first everything, and he means the world and more to me. I really want this to work, but I’m incredibly antsy about it. Does anyone have any advice? Things you did to make it better/easier or things you’ve heard from others? I’m sure we’ll be fine, but I’m one fatass over-thinker and I could really use some reassurance. Thank y’all in advance ❤️