NEW MEMBER doin Insanity/Zumba

Hi my name is Latonia. I am new to MFP. I'm lookin for friends and people who have gotten good results, with pix, from these workouts. My starting weight was 264.2 lbs now I am 159 lbs. My goal weight is 140. I am currently drinking over a gallon of water a day and stayin within my calorie limit. I am proud of myself for actually Getting Started again. I tried Insanity in the past then 2 1/2 weeks in I was in a car accident. I was pissed!..Another time I tried Insanity and my foot started Bothering me. I found out my arch is falling in my right foot and I couldn't stand or walk on it at times. The pain would come and go. So I took a break from my exercising and walkin my dog(I felt so bad). That's OK...I'm determined to get to my GOAL!
I would also like to know what can I do to slim down my arms. Your feedback is greatly appreciated!