I donít believe that you failed. Everything we do in life it is a stepping stone, and you can only go higher than the last step. If we err again and again with same error than we do not move upward or in positive direction.
The road will be harder, please drink warm water only per thirst, rest well and no exercise except for walking mildly.
If you do have to break your fast, then feed your body with organic fruits and vegetables. Then start the Iodine protocol, do kidney, colon and liver cleanse. Once you are clean, you can do a fast with water only.
Did you check out Gerson Therapy?
Best wishes, keep it up, donít give up easily due to obvious symptoms of fasting.