Is long distance doable?

My boyfriend of just a couple months is leaving for college in two days... We have talked about long distance and as of now that’s the plan but i’m terrified. I’ve never felt this way about anyone before.. me and him clocked so fast and I feel like I can really be myself around him. We both see a future with each other but the next couple years are going to be really hard (if we make it) Any tips or advice?