You should bother. My guess is you have poor interviewing skills if you interviewed at ten sites. Check how you are answering questions. They should be polished, not long winded, and address the core question. For example, tell me about a time you disagreed with a co worker: they want to see if you handled it at the lowest level, if you can compromise, and how you may avoid that in the future. That should all be wrapped in a 45 second answer.
You focus on answering questions like that, having clear and concise short and long term goals, and I am sure you will do well.
Lastly, when they ask tell me about yourself, do start with childhood. It should be how you decided pharmacy, how you decided Residency, and how this site fits in. Throw in a few details about yourself personally to let them know about you as a person.