Healthy lifestyle

Hi there. I decided that I want to live a little healthier so I started to eat a lot more variety such as whole grains and fruit and vegetables...etc. I also started excercising. My family is not used to it and thinks I'm a freak, just because I want to eat healthy. My brother was overweight and he does nothing but sleep eat and watch tv. My older brother believes kids shouldn't need excercise and that I should stop doing what I'm doing. He even said walking doesn't benefit you at all! I have been telling him that it's wrong and kids should limit junk and be more physically active but he just won't listen, along with the rest of my family. My mum is addicted to chocolate and sweets and keeps buying them. I don'tond having a cake once in awhile but how can I convince my family to be more healthy? Pleas help!

you can't convince anyone to eat healthy. All you can do is lead by example, and provide them with the facts.