can I live on 200 calories a day while exercising intensely

Hi,
Welcome to ehealthforum,
Intake of just 200 calories a day is too less for you. You can lose drastic weight with your plan, but you will have rebound weight gain if you do so which would be even more difficult to lose. You might also have serious defects like hypoglycemia, fainting and falls, and harm your health. Your daily intake has to be calculated based on you activity levels and ideal weight range. Visit a certified dietician for getting a diet chart made to follow it strictly. You should start seeing changes in weight of about 0.5 to 1 kg weight loss per week if the chart is made well and you adhere to recommendation in it along with increasing exercise levels. You can have minimal calorie required at rest (about 1000-1200 Kcals per day for an average person). Choose the right foods. Keep diet as low carb and low fat diet. If using carbs, use complex carbohydrates.
Take care.

Thank you for your advice. I will take it under consideration, however I have found it very difficult to physically eat more than 500 calories a day at the most. but I will try.