Hello mam you come in grade of very high obesity. Its too high time i can recomend u any diet or exercise. My advice for you will be only bariatric surgery
which will help you too loss quickely or else diet and exercise will wont help u much cause it requires lots of effort and good amount of exercise which is not possible for youvat such a high weight. Plz avoid white breed and revert if you are intrested in bariatric. Bye and take care.