My Tweety also has a slightly longer beak than I think he should. His friend, Bell, has a shorter beak, but not by much. Hardly noticeable to everyone else except me.
I also provide lots of chewy things for the both of them. Shredding type toys, foraging toys, that I can hide treats (millet) in. I have tried the mineral blocks and cuttle bones, but my female just tears it up until it's all gone. I have a few sand and other "grooming" type perches that they both like to scratch and rub their beaks on now and then.
Hope this helps a little.