Army girlfriend advice?

So on Monday my boyfriend left for basic training and he's going to be gone for 5 months. He was able to call me last night and the night before, but he starts basic training today. He said basic training will last like 5 weeks so he won't be able to call me. I'm having a hard time coping because all my friends are normally busy so he was usually the only one who would hang w or text me(a few nights I'd be with friends). I just need on advice on how to distract myself or something to keep me busy.