Log in issues

I have a wordpress blog installed at sarahsblogging.com I haven’t used it in quite some time. I wanted to get started back up, but when I try to log in with the username & password that I have, it keeps telling me that username does not exsist. I can’t even get a new password sent to my email because it isn’t accepting my username. I still have my original email from when I started it up, and I know I would have saved any other ones if I changed my password or anything. Is there something I can do so I can still post on my blog??