Everything depends on your class. Archers are most likely solo farmers and raid hunters. Mages/meele aoe farmers, but now at 2.0 I see meele farmings raids too.
We don't have any max level yet and here you don't need to rush, just play one main character, not 10 different chars and all 50lvl around max.
There is no way to catch up on end game, because we're getting here updates, which gives us new features, so just join a clan or cp, make some friends and spend your time by farming or anything else