I loose my weight day by day and feeling tired.

You need to take high fiber low fat diet. Drink lot of water everyday. Take small and frequent meals at regular intervals of 2-3 hrs. Avoid outside food completely. Ask me directly for customized diet plan for you 

High fiber low fat foods especially all greens and fresh fruits, sprouts , oatmeal etc.

You can take murmura bhel / roasted chana / fruit chat / sprouts and vegetable sandwich at office as a healthy and low carbs high fiber snack to loose weight .