I wish you all the luck for your fast. It is difficult to say that you will achieve a complete detox in ten days. What we can expect is that after ten days fasting you will certainly clean your body and mentally feel sharper than now. Everyone is different so one cannot measure what it will take to clear out all junk from wrongful eating for four months. If you want to continue detoxing after the fast, then you can continue juicing and then raw plant based foods.
What kind of light detox did you do for last two months?