About what part of the game are you at? After about the marsh I found it way too easy to get overleveled. Did you get the "more XP from quests" skill on Shulk's skill tree? Also, once you raise affinity with a town, you can get additional, more lucrative quests from them. I think after you get Colony 9 to 3-4 stars you can get some quests with bigger rewards, including a new skill tree for Shulk.
I'm contemplating soft-modding my Wii to keep playing this game, but at an initial glance it seems pretty intimidating to someone of my limited intelligence, as relatively easy as the process may be these days. I did look up some local repair shops, who could fix it for around $50 if it is just a laser problem. Or I could also borrow another brother's Wii, though I'm not sure I could take it mentally if his is also broken. Ugh. Stuff to consider.
I'm sorry to hijack this thread with this stuff, but man, I think it's kinda ****ed that me and my three brothers all have Wiis, and at least three of them are now broken. Surprisingly my launch Wii lasted the longest, although my first brother also had a launch console and his borked almost two years ago. (I wonder if it's coincidence that I'm the only one to have long ago turned off Wii Connect 24.) On top of that my PS3 semi-regularly freezes, which has been making me nervous for quite a while. Meanwhile I still have a working SNES, N64, Gamecube, and hell, original Gameboy. Guess the days of hardware that sturdy are gone.