Scared of the future

Sorry for the long post

My boyfriend of about a year just got a seasonal job in his field that hes been trying to break into. This is great and I’m really excited for him but the only problem is he has to move 10 hours away. Up until 3 days ago we had plans to move back to my home town, he pretty much had a job lined up, I am finishing up my college degree with an internship there and then within minutes all the plans we had been made were just yanked out from underneath us. Now I’m going to go with him to his job for the summer but need to return to my home town when the semester starts to do my internship. Everything just changed so fast and I feel like I’m unprepared for it all. I am really truly happy for him but I’m just scared because we won’t be able to see each other for 2-3 months, possibly longer and all ive ever heard about long distance relationships is how terrible they are and how they tear people apart. I really love my boyfriend he’s my world he’s the guy I want to spend the rest of my life with and I’m just scared this experience is somehow going to make our relationship fall apart. I just don’t have a lot of people who I feel like I can really talk to in fact I only have two, but both of them are going to be gone during this time (bf 10 hours away and best friend studying abroad in china). I don’t know I guess I’m asking how to bit let the burden of all the unknown get me down. I’ve been trying to be happy about it but I just can’t seem to be, instead all I can do is worry. I just don’t like the idea of knowing nothing. I don’t even know where I’m going to live when I move to my hometown now so it’s just stressful.