Rashi says that being bald in the front part of the head is called: גַבַחַת “Gabachas”, and baldness of the back is called: קָרַחַת “Karachas”. RSRH Zatzal says that the front part is the cerebrum (גַבַחַת “Gabachas”) which carries the higher dignity and the intellectual, moral, spiritual factor; and the back part (קָרַחַת “Karachas”) contains the animal factor, and the love of Gashmiyus which a person has to subordinate and try to be Mach'nia (make humble) to the front (גַבַחַת “Gabachas”).
We can suggest, that for some people the best Tochacha is when they remind themselves of their Maalos and their potential greatness, and the importance of their Sechel and spiritualism. (R' Gershon Liebman Zatzal has a beautiful Shmuess on the greatness of your Sechel). Perhaps they are those whose Tzora'as appeared on their: גַבַחַת “Gabachas”.
And others need to keep reminding themselves about the futility of being a Gashmiyus’dik type of a person, and the lowliness of Kin'ah, Ta'ava, and Kavod, which: מוֹצִיאִין אֶת הָאָדָם מִן הָעוֹלָם take a person out of the world. Perhaps their Tzora'as would appear on their: קָרַחַת “Karachas”, to remind them about the lowliness of Ahavas (obsession with) Olam HaZeh. I once heard that the relationship between the front of the head (with the higher brain) and the back (with the lower brain) is like the relationship between the human and animal aspects of a person. The Torah emphasizes the importance of the spiritual over the physical, and the need to keep the animalistic side subordinate to the spiritual.
You are justified in aiming for great Tzidkus, since you are a Tzelem Elokim and a Yid, and your “inside” is indeed gold with a holy Neshama, and all kinds of dormant abilities.
