Zumba Questions! :)

Hey everyone! I was down to 85 pounds lost, but this year in college was super stressful, and I ended up gaining 10-15 pounds back.
I was also getting bored with the other exercises, like ellipticals and floor exercises. I was doing Insanity, but I cannot afford to eat all the food is wants you to eat. I guess following the meal plan is important, and I wasn't losing anything. I didn't want to work that hard and show nothing for it if my body goes into "starvation mode", you know? When things financially get better, I will go back to that,
My mom gave me her Zumba Exhilarate DVD set, because she never used it. I love doing it, even though some of the songs got old, but now I want to start doing it regularly, every day. I get more motivated because it's fun and doesn't feel too much like a workout. But I have a couple questions.
1) What other zumba dvd sets do you recommend?
2) What were your results like?
3) How was your diet like while doing Zumba? Obviously you shouldn't eat junk and stuff, but was there a certain meal pattern you followed?
Also, feel free to PM me, or even post on here, your before and afters.

Muchas Gracias! I'd really love to hear what you think please!