My grandmother told me the other night, "You'll love your kids equally, but you won't always like them equally."  Ah, how I totally get that.  (Even if it makes me cringe to wonder at what points during my childhood I was in an "unlikable" stage.)  Every stage of childhood has its challenges for parents, and honestly, sometimes I have patience for some challenges more than others.  So be it.  Every parent hears the phrase, "This too shall pass."  And it shall.