Hebrews 12: 15 "…looking carefully lest anyone fall short of the grace of God… lest there be any… profane person like Esau, who for one morsel of food sold his birthright. For you know that afterward, when he wanted to inherit the blessing, he was rejected, for he found no place for repentance, though he sought it diligently with tears."
Esau sought diligently, but he wanted the blessing, not repentance. He had no time for repentance. Give your time, energy, and prayers toward repentance. To seek blessing apart from repentance results in severe disappointment.
Let not your life be reduced to a tearful chase of what you would have been entitled to.