what is an average persons general meal plan

I am struggling with sticking to a healthy lifestyle and cutting out processed food. I have lost 3 stone over the past year and reached my goal weight after previously being overweight however I am now rlly interested in eating healthy, staying active and doing what's right for my body. unfortunately i have no idea how to go about starting a healthy lifestyle, I'm quite active and eat my fruit and veg everyday but due to living with my junk food/ processed food orientated parents i cant start eating proper home cooked dinners. All i eat are ready meals and processed carbs like waffles, aunt bessies roasties e.c.t. on the plus side it fits my macros and the ready meals i get are very low in anything unhealthy however i doubt that they contain many vitamins or important substances like protein. plus they don't have much veg or fruit on the side. Anyone got any tips on how I can get motivated to start cooking for myself.