Need advice

hello all I need some helpfull hints or advise I am a 33 ( soon 34 ) year old female 5 foot 1 inch tall and weight 187 down from 199.8 lbs . I started mfp at the end of march 2011 and have managed to loose 13 lbs to date. My daily calorie intake is of 1200 calories and I rarely exercice but do try to despite not really enjoying it. I have done tony horton' s 10 minute trainer and lost 45 inches all over my body but only 4 pounds so i switched to Zumba where the weight seems to come off a bit more. Now to the point , anybody out there have issues loosing weight , I am a little bored with zumba at the moment and want to go back to 10 min trainer but am fearfull the weight will stop comming off or slow even more ( if possible ) . Can anybody help me , I would really like to lose the 2 lbs a week and am at a loss of what to do . Any and all helps is much appeciated