What if I cheated with a glass of juice

This is my third cleanse and first time post. My first was ten days and no issues. My second I was trying for 30 days and tried to mix in a Water Fast for 3 days in the middle(day10) and got a cold and quit both.

I have the book and he does not cover this so here is my question.

I am on day 15 today and yesterday I started to feel a cold come on and I want to make 30 days so my mind says vitamin C. I check the content of vitamin C of lemons online and not much in them. So I thought well he says orange juice at the end so I had 2 glasses of orange juice.

Am I like starting on day 1 again, I mean as far as a long term fast goes? Also, can I continue the lemonade cleanse or since I started with orange juice do I have to go off the cleanse? I am noticing a lot of stomach movement since I had the juice. Any other information would be helpful. How long can I continue of I can stay on it? My goal was 30-40 days which the book says is ok but I hear you should only do supervised. why?

OH, the cleanse has helped me in many ways, mentally, physically and spiritually. I am a non smoker and non drinker-non drugs. Sorry for the long post. thanks