The best way to get to your goal of thirty days is to be prepared. I suggest eat only raw organic plant based diet for a month. Do akidney cleanse, then colon cleanse, then liver flush. After Liver Flush eat same way for a week and then start your fast.
Take one day at a time. Rest, stay warm and drink warm water per thirst. You also must keep strong mind to deal with symptoms from fasting and hunger pangs.