There are two main kinds of LDRs. Either two people meet and are together for a short period of time when one or both are travelling, or two people are living in the same place for a considerable amount of time and then one has to move away for family, work, or study.
There are difficulties and advantages to both. If you have only been together for a short time before you’re separated by distance, you don’t have to reconstruct your entire relationship, because your relationship is starting out as a long distance relationship. On the other hand, if one of you has to move away after having been in a relationship for a long time, you have that time as a strong basis and foundation.
However, if you are starting instantly with an LDR, you’ll be getting to know one another via Skype, Whatsapp, phone calls, and Facebook, and it’s natural that some things will evolve very quickly and others not evolve at all. You may find when together, that you can have very efficient conversations, but others things may seem a bit disjointed, whereas if you have a basis of a few years or months, you’re going to see and have to get used to different communication habits, because you will be communicating differently.
Either way, if you’ve committed to an LDR, it’s because you two have made a tremendous impression on each other’s lives. Be patient with one another, speak about issues rather than be angry about them, and ask rather than assume anything.