I am a US DO and applied to 80 programs during the last cycle. Received 13 interviews and ended up doing 12 interviews (ranked all 12 including university and community programs). I did not match. I am from a mid-tier university program for residency. Step 1 > 250 and Step 2 > 260, Level 1 and 2 > 700. I had good letters and thought had pretty good research. I had 6 cardiology abstracts published (3 first authors), 9 poster presentations (4 first authors including in ACC and AHA), and 1 manuscript in review. That manuscript (I am the first author) has now been published. Out of those 6 abstracts, two other manuscripts will be in review before the application cycle (one first author and one second author). I recently started another project and will likely submit it to AHA and will try to write up a manuscript ASAP. For next year, I will be doing a chief year at an outside institution. Besides applying to more places and working on my interview skills (I am an introverted person), is there anything else I can do to improve my application? I would appreciate any suggestions and recommendations.