Just don't stress yourself out with it. A good first fast can go 8 or 10 days - if you are really struggling with the thought of those 30 days, know in the back of your mind that fasting is not something you can force - you HAVE to honor your body. If you make it 10 days, great. If you make it 30 days, you're amazing. If you make it 40 days, you're doing really well. But know that you can always fast again. If you start another fast in 2 weeks, you might last a little longer. My first fast I made it 8 days then I crashed, couldn't make it through work, etc. When you're working, you've got to make sure you're being safe. Listen to your body. You don't just get one shot at fasting - you've embarked on a journey of self improvement. Congratulations at your amazing progress thus far!!!! We support you here in ALL YOUR EFFORTS.