Marine boyfriend! bootcamp!?

could someone help me out...I'm 17 and my boyfriend is going to marine corps boot camp in two weeks and i honestly don't know what to do. i'm going to keep some of his shirts, his tarantula and his guitar. i don't want to feel like those chicks what are all worry or think they wont come back but how can i help time p.. I'm on vacation so I'll have ALOT of time to think. just someone give me some suggestions. please