We can never trust how we feel on a particular day to confirm our salvation. Some days we might not "feel" saved, but what does the Word of God say? Our foundation lay in the death, burial and ressurection of Christ our Lord. His Word is the anchor that holds us firmly in place, so that no matter the storm, we shall never be moved.
"This hope we have as an anchor of the soul, a hope both sure and steadfast and one which enters within the veil "