After that event, I became a more heartful, a soulful, a fearless, a self-contained person
OR
After that event, I became a more heartful, soulful, fearless, self-contained person
By the way, can we use "a, an" before comparative adjectives as above, like "a more beautiful person"? we can say "a better idea, a taller guy" etc but about with "more"?
Also, why do we say "his best grade was BA" but not use also "the" as usual before superlative as in "his the best grade was BA"?