Hi SHaron - cut out the fasting and eat when you are hungry. High fiber foods, good fat. DOn’t worry about calories or losing weight - just eat the food you need to in order to be a healthy Keto-er.
If you like to cook, try thiis Keto bread: https://www.dietdoctor.com/recipes/the-keto-bread/servings/8
Its awesome - hang in there!
Xxbeth