Beginning Water Fasting

Hello everybody my name is Chris and right now I'm on day 2 of my Water Fasting journey (its ending as we speak so onto day 3). I'm primarily doing it for weight loss as I'm only 16 and weighing at 298lbs (135kg).
I know that post-fast I will have to do a complete lifestyle change and I'm happy to do so, I just really want to change overall as a person: being healthier and cleansing myself.
I've decided to do this after a lot of research and a butt load of failure in the past of weight loss, dealing with Depression makes it even harder but I'm prepared for it as of now. If any of you would like to give any feedback or advice its welcomed and appreciated dearly, have a blessed day to you all.