OP, just enjoy the game like many have said. I play 40-60 hours a week probably, and still find the game fun and always something to do. Its all in your Friends/LS that makes this game fun. Be sure you find a group or multiple groups of friends to share experiences with. Also most important, don't RUSH the game, enjoy every part of it as you gain ranks, fight things etc. The most SP isn't always the most fun way. So don't be the guys who think SP, SP, SP and only SP... Those guys burn out and leave the game. Think about exploring, fighting mobs that are uncommon, going to new areas, experiments and maybe finding new/better ways to do things. There is so much to the game that 80% of the people who quit didn't even do.

My personal opinion on the game: Play it, but don't rush it