The days of Sefirat HaOmer are not days of Teshuva from sins;
The theme of these days is rectification of the soul, not rectification of deeds.
During this period, one is required to examine one’s inner nature more than one’s outer deeds.
It is possible that, in practice, one does all that is required of a person of his caliber, yet there may still be defects that he can find within himself.
There are people who, despite their good deeds, have character defects, and Sefirat HaOmer is the time to rectify those defects.
In order to receive the Torah fully, one must go through a process of self-refinement.
–Rabbi Adin Steinsaltz