Comment by yes on Home page

Consume less than what you do on regular days and avoid sugary foods and drinks (cut them off all at once if you can).
Drink a lot of water whenever you feel hungry or crave something, even after eating.
For your workout, there's a great routine for beginners that produces fast results: https://youtu.be/yL_dE81O_mw
You can also incorporate more of her videos into your workout plan. Don't forget to stretch before and after. Whenever you feel down, distract yourself by doing more things in your day like playing, studying whatever it is , don't leave any time for negativity.
And good luck ^^