My mom & father is moving to Ghana(for his job), & I'm really going to miss my parents a lot. What should I do?

My family is all tered, my sister is in a different country, my mom & dad are at Dulles Airport on their way to Ghana, & I'm here in NJ. I don't think I have the heart to go to DC anymore. I'm a family man, & I'm just saddened they're moving far away. I haven't really been physically close to my family for a lot of years now, I'm here in NJ with a job & doing masters, but I'm 22; & I feel I haven't really spent real time with family. I haven't really spent significant time with my sister in over 4 years, because she is in Asia & I'm here.