I'm pretty new and would love support!

So being just out of high school, I still live at home. And everyone in my family has weight issues, but I finally decided to do something about it. And although my family asks how I'm doing with it all, they aren't very supportive. They all want to lose weight too, but they don't quit bringing ice cream, pizza, and cookies into the house. And even though it breaks my heart to see that they won't change, it's not like I haven't tried to help them..Since I don't really have the greatest home support system, I'm looking for people who are dedicated to losing weight and getting healthy like I am.