>>1070596>protagonist is NOT specially gifted, the "chosen one" or otherwise.>Realistic Depictions of Growing and Changing Don't watch anime. You're not going to get both, because if the protagonist doesn't have superpowers, he has an extraordinary righteousness and tenacity and overcomes all his problems by being right and not giving up.
If what you want is realistic depictions of people getting over their own internal issues, explored through the analogy of superheroes, then BnHA. Otherwise, you might be out of luck and really should look elsewhere.