Our feelings deceive us. It applies to the opposite of your statement as well, just because you “feel” does not mean that you are forgiven. Many “feel” that they are okay in the eyes of God but are not. How we feel does not have any bearing on how God feels.
God gave us the Sacrament of Confession. As long as we make a good confession, we know that we are forgiven regardless of our feelings. Do not let Satan deceive you. Go to Confession as often as you fail.
Proverbs 24:16 For a righteous man may fall seven times and rise again, but the wicked shall fall by calamity.
A disciple came to a certain Elder, one day, and said, “Father, I have fallen!”
The Elder answered, “Get up!”
Again and again he came to the Elder and said, “I have fallen!”
And the Elder invariably answered, “Get up!”
“Until when must I continue getting up?” the disciple asked.
And the Elder answered, “Until the day when you give up your soul to God!”
Thus, every time when we feel that we have fallen, the Sacrament of Repentance tells us to get up.
You do not lose the battle against sin until you quit getting (give up struggling against it).
Abba [St] Anthony [the Great] said to Abba Poemen, ‘This is the great work of a man: always to take blame for his own sins before God and to expect temptation to his last breath.’
We will be tempted. We will likely have shortcomings in the future. Thankfully we have the Sacrament of Confession.
“Did you commit sin? Enter the Church, repent for your sin, for here is the physician, not the judge. Here one is not investigated; one receives remission of sins.” - St John Chrysostom