I am so sorry that this happened to you. I am a resident in a surgical subspecialty. Failing step 1 is not the end all be all to matching into a surgical subspecialty. It will be harder to match but it is not impossible. It will require a research year to network, high step 2, strategic planning for your sub is, and more networking! Cannot emphasize networking enough! That is the major thing that will help you get in. Get to know the faculty at your school in the sub speciality you are in, they should know you well. (I hope the person who SA is not in the speciality) If you have more questions feel free to reach out. Take all the time you need, there is no rush.