Starting over with New Goals

Current Weight:  166 lbs  (5' 1")Started Diet/Exercise:  Sunday 11/16/08.Short term goal:  Be down to a size 12 by Christmas from a current size 14.                            Treadmill/Walking/Elyptcal:  35 mins x 4-5 times per week                           Weights:  25 mins x 3-4 times per week.Long Term Goal:  Lose 56 lbs.  (Would like to do this by my birthday, 5/23/08).  This is a little over 6 months and might be pushing it.  I want to lose 56 lbs.  I will do my best to achieve this by my birthday but will adjust this time frame if I see it may take longer.  .Also, using Weight Watchers points system.