Hi Refreshed,
Thanks for still reading my fasting adventures. No, failure to complete a fast is not a sin unless you are disobeying God by not doing so. I fell short of my goals for fasting and seeking God during this time. I do feel that God wanted me to do better.
"By not eating or having to prepare foods, one could be Mary and not Martha and spend more quality time with our heavenly Father."
Yes, what you said here is very true. That is one of the main reasons why I need to do more water fasting. All the time saved by not eating and preparing food can be spent in seeking God. :)