I hope this is never used to describe my writing career once I’m published.

epigone (ep·i·gone): / EP i gohn /
noun

(1) an undistinguished imitator; a mediocre disciple; an inferior follower of or successor to an important writer, philosopher, painter, etc.

[From Latin epigonus meaning “successor,” from Greek epigonos meaning “(one) born after,” from Greek gignesthai meaning “to be born.”]

Usage: Despite her best efforts, the music she composed never amounted to more than feeble attempts by an epigone of Mozart.