TLDR: Skip the grief process for now, take on Phase II, and email me if you want some quick advice tonythepharmacist@gmail.com

Here's a list of the top reasons students get turned down for pharmacy residency programs, not necessarily ordered by most common to least common based on why you in particular did not match:

Weak or Unfocused Letters of Intent A poorly written or generic letter of intent is one of the most common reasons candidates are overlooked. Programs want to see clear, specific reasons for your interest in their residency and how your experiences align.
Poor Interview Performance Even strong candidates can falter in interviews if they fail to communicate their skills, goals, and personality effectively.
Inadequate Clinical Experience Limited exposure to diverse rotations or insufficient patient care experience can make you seem unprepared for the demands of a residency.
Weak CV or Resume Even with solid experience, a poorly formatted CV or lack of emphasis on accomplishments can weaken your application.
Lack of Strong References or a Poor Recommendation Residency directors heavily rely on references. If your letters are vague or uninspiring, it can raise concerns about your performance or professionalism.
Poor Professionalism or Attitude Residency directors look for candidates who are adaptable, humble, and collaborative. Arrogance, lack of teamwork, or failing to follow up can severely hurt your chances.
Low or Unbalanced GPA While GPA isn't always a dealbreaker, a poor academic record may suggest you'll struggle with the demands of residency.
Limited Leadership and Involvement Programs often seek candidates who demonstrate initiative, collaboration, and leadership through involvement in student organizations or volunteer work.
Weak Research or Project Involvement While research experience isn't always mandatory, a lack of engagement in presentations, posters, or projects can make your application less competitive.
Not Ranking Programs Strategically This mistake is common but avoidable. Candidates may undermine themselves by ranking too few programs or focusing only on highly competitive sites without backup options.

Key Takeaway: Focus most on crafting a compelling letter of intent, preparing thoroughly for interviews, and maximizing clinical experience. Strengthen your CV, build strong mentor relationships for references, and demonstrate professionalism throughout the process, but get back on the horse and start emailing programs . . . now.