Long distance

So my boyfriend and I have been together for a little over 3 months. He recently got an internship about 4.5 hours away out of state. In the next few weeks he's going to be leaving and we probably won't see each other for 3 months until he comes back. He even said this break is going to be a test of our relationship. We've only been dating 3 months so I'm worried we won't make it over the summer. We suck at texting and it's even worse over FaceTime and phone. Do any of you ladies have any long distance advice? Should I just end it before he leaves and save myself the heartbreak?