Sorry to hear that you didn't pass this exam. It truly is a tough exam. My personal opinion is that IC combined with the
Principles of Accounting are the best resources to use. I also have an accounting background; however, I don't think my background was much of an advantage. I remember passing the exam, but it wasn't by a large margin, I know that. Please be sure to let us know how you do should you take the Financial Accounting CLEP.
I wish you all the best!