<span>The correct answer is forget about competing this year. What makes a sentence parallel is using the same gramatical structures in numerous consecutive clauses. If you put forget about competing this year you do just that because it's the same form as "either you master a new drum lick each day or".</span>
<span>Polybius was a Greek historian of the Hellenistic period noted for his work The Histories, which covered the period of 264–146 BC in detail.</span>
