Fasting is between you and God, guilt has no place in your relationship with God. The purpose of the fast is to draw closer to The Lord. Breaking your fast is not a sin or make you a failure. God’s love for you is much stronger than any thing you’ve ever done. If you break your fast when you meant to be fasting, or even if it was an accident just get back into the fast and finish strong. It doesn’t have to be the end of your fast.
God’s word says in 2 Cor 12:9 “My strength is made perfect in weakness”. God’s strength often shows up in our weakest moments. So ask God to give you the strength to carry on with your fast and help you to finish strong.