Seriously healthy

Hey folks.  So I decided that I am really serious about losing weight and getting healthy. I am approximately 130 lbs overweight. And this is the heaviest I have ever been. My family has a history of diabetes and heart problems. So I really wanna kick it in to gear and get started. I want to do this in the healthiest way. I would love to find some people for a support group since this will be hard at times. If anyone has any suggestions on getting started, please let me know.