It's possible if you put your mind, soul, 100% effort into it. Remember though, if you feel your body can not take it, you need to stop. I would suggest a 30 day fast, then break it for a while with raw veggies/fruits only, then come back to another 30 day fast. A person can survive on just water for 90 days, so 60 days...that's kind of near the death line.