Very mature of you to make a decision like this!! As for your mom I would just show her as much information at you can on the diet: Why it's so healthy, how it can change your life etc. Get some books or find articles online that she can read. Best of luck to you and your raw journey! Join the 30 day challange if you can. It is helpful support :)
It's all about having energy and getting in shape now :D
The three great essentials to achieving anything worthwhile are; first, hard work, second, stick-to-it-iveness, and third, common sense.
-- Thomas A. Edison (1847-1931) American Inventor