
Seek not to improve yourself from the words of others, but from your own desire to pursue a healthier lifestyle for yourself. The words of a singular child are minuscule in comparison to the excellence that can be achieved when motivation comes not from the need for external validation, rather the love you have for yourself.
Anyway what you wanna do is find out how much of a caloric deficit lure comfortable eating each day and go on a diet. I.E. if you wanna lose 2lb/week you're gonna be way hungrier at the end of each day vs losing 1lb/week. If you Google "calorie calculator" the first result (calculator.net) will walk you through finding out how much you can eat. Then you need a food tracker like FoodNoms or LoseIt and you need to log every single thing you eat every day. That means weighing food you cook