You can get into a clan that can help you powerlevel trough the old content but the main point is that MMORPGs are huge. They need devotion like no other games and thats the main point why they are huge. They get expansions that dont make the old content irrelevant. Maybe Mmorpgs are not for you or you just need to experience the beauty of them for yourself to see my point why Destiny would be a better game if it took some lessons from the big boys.