people here keep talking about being bored, and yes the game gets boring at certain points, but changing chars can relieve boredom
So what you do is find your favorite char, grind away on that till you get bored, then switch to another char for just a bit, then return to your main char to grind some more till you get bored again
As someone said try the other aspects of the game, jobbing, pvp, party system (use party match system, you will meet new players there)
These will help your main char to grow past the boring parts
and your other low chars will grow too
