I have managed to change my Primary email so that it is not the same as my Rescue Email. It took some time, so don't expect it to be a five-minute job. I had two email addresses, so could not just change the Primary because it then became the same as my Rescue. I was in a position to re-activate an old Yahoo! email address; you can create one of those for yourself, or presumably Hotmail or similar. Then juggle your email addresses until the one you want for your Primary email is in place. This involved, for me, logging out and then back in and answering my security questions before I could begin to do this. Take courage and try!