For some people and to some extent,long distance relationship is hell.People in regular relationships don't get the whole idea and don't see any positive sides of LDRs.Damn even I at times want to sit down and cry because it seems...unfair,I guess.
However,there is indeed one incredibly strong benefit in LDR.It motivates you.It pushes you towards the limits you have not even imagined.It allows you to find your way out and find real solution to the problems.It stimulates you to make an effort in your life.
Every LDR has its own story,so keep going.You are already getting a lot out of it.