Common mistakes in ACT preparation often revolve around poor planning, inconsistency, and mismanaged practice. Many students focus too heavily on their strengths while neglecting weaker sections, skip timed practice tests, or fail to review mistakes thoroughly. Others may underestimate the importance of pacing, spend too long on a single question, or rely solely on one type of resource without diversifying their study materials. Avoiding these pitfalls by creating a balanced study plan, practicing under timed conditions, reviewing errors carefully, and using a mix of books, online tutorials, and practice tests can lead to more efficient preparation, improved accuracy, and higher confidence on test day.