How to deal with a long distance relationship? HELPPP!!!?

so me and my boyfriend have been dating for like a year and something days, well he is a junior and just got invited to some hockey try out 4 hours away from me, now he has to move down there for the school year (his senior year) and play down there if he makes it, well not his whole family is moving there just him, well idk how to handle this because usually we only see each other one day a week, one day on the weekend, and we are doing just fine with that but now that he has a good chance of making this team what am i going to do? i need help !!! bad!!!! and we are staying together through out this whole thing but i need help,,,, and the people from the hockey try outs said that if he makes the team he has a high percentage chance that he will go to the nhl when he is 19/20 years old. i just dont want to loose him. we both are in deeply love with each other!! just help me please. thanks(: