Hi there, Sonia! My name is***** am a computer professional with over 15 years of experience with both Mac and Windows. I'm sorry that you're having this issue. It would be my pleasure to help you resolve this. If you do have to setup a new account, you will lose access to the books already on the kindle. However, you should be able to reset your Amazon account password ***** change the email address on file to your new email address.
Are you able to login to your account at Amazon.com?