Personality building

Peace and blessings.
I am a yeshiva student and I have noticed that in general when the rabbis talk about the previous Rosh Yeshiva (Zt\”l of course) they usually talk about his greatness as a person and the special personality he had and things like that and less about his being a first-rate scholar (even though he was one of the giants in the field of scholarship). And this is a phenomenon that repeats itself throughout the religious world in relation to rabbinical students and Rosh Yeshiva heads. And it makes me think about how I actually work on this area? How can I grow as a person? Unlike learning, which has some relatively paved path that a person has to go through in order to grow, the whole area of ​​personality building is a bit unclear to me. I would love to hear your opinion on the matter and how one should work (I would also appreciate practical advice) on these matters.