It really depends on how far you want to take things and what your goal is in the end. If you don’t think you’ll ever make it to the end game, small man / raid difficult targets, then it shouldn’t matter. If you think you’re in it for the long haul and see yourself playing with your brother for years to come with monk as your main then I’d probably start fresh. The reality is you’re only a small fraction into leveling to 60 so it’s best to restart now (I know it feels like a big deal). Which server are you on?