NEED SOME HELP.... I WANT/NEED TO LOOSE WEIGHT!!?

Im 17 ,I'm 215 pounds and stand 5'11. My family has a medical background going back to my grandparents. (such as heart disease, lung cancer, diabetes, high cholesterol, high blood pressure, and over weight.)Can someone please give me a work out plan that i can do with out taking any medicines. I have a background of migraines and am on trilptol to prevent migraines and seizures. I’m no longer drink soda, and no more fast food. Any thing you can recommended will be helpful. Thanks in advance! PLEASE DONT BE RUDE, IM ACTUALLY TRYING TO GET HELP SO I DONT FACE THOSE HEALTH PROBLEMS!!!