I sent you a PM. I am adding here because you are asking more questions here.
Fasting will not hurt you but eating will, especially eating processed foods, drinking alcohol, etc. I don’t know your diet, but fasting will definitely help.
Yes, you can do multiple fasts in a year as long as you space the fasts with at least 1.5 X the number fasting days and eat micronutrient dense foods. You have to build your nutritional reserves. You may have body fat to spare during your fast, but you have to feed your body with good nutritional foods.