After reviewing thousands of applications over the past decade, I've identified five recurring mistakes that significantly hurt candidates' chances at Ivy League schools.

1. Generic "Why This School" Essays

Admissions officers can spot a recycled essay instantly. Each school has unique programs, culture, and values. Research specific professors, labs, clubs, or traditions that genuinely excite you.

2. Overloading Extracurriculars

Quality over quantity. Admissions committees prefer depth — a student who founded a nonprofit and grew it over 3 years is more compelling than someone listing 15 clubs.

3. Ignoring the "Additional Information" Section

This is your chance to explain gaps, provide context, or share something that doesn't fit elsewhere. Don't waste it.

4. Weak Letters of Recommendation

Choose recommenders who know you well, not just prestigious names. A heartfelt letter from a teacher who watched you grow is worth more than a generic note from a famous professor.

5. Submitting Without Fresh Eyes

Always have someone else review your application. Typos, unclear phrasing, and logical gaps are easy to miss when you've been staring at the same text for weeks.

The good news? All of these are fixable with proper guidance and planning.