We do this by humble repentance. If we do not yet know Jesus asking Him into our lives as our personal savior. See the How to be Saved Page. If already have a relationship with Jesus, sometimes we also experience this feeling of failure if we "mess up" or if we feel we have not prayed enough or been "good enough". We must remember though that although God does chastise us when we are wrong and Holy Spirit convicts us of our wrong. It is in love. It is not mean to tell us how terrible we are and draw us into shame ... but draw us back into the arms of our Savior.