I, myself, do not have any experience in fasting and LCHF diet. I can not give you any specific advice. To me, you do not need to do fasting because your A1C is pretty normal.
However, if you are interested in fasting and or low carb and high fat diet, you may want to start your membership with Dr. Fung's group (click the link below). First month is free. Later on, if you still want to continue, it only costs you $9 per month, which is pretty darn cheap.