changes in our household

My husband and I have always gotten money back from our taxes.  This year we got a little back from Federal and had to pay State. We have 4 children: one who we were not able to claim for the first time this year, one who lives with us full time, but pays her own college and works full time, one who turned 17 this past year, and one who is 10.  We claim married filing jointly with 4 dependents.  What do we need to change in order to either break even or get money back?