I cannot open keychain access

I recently changed my password for keychain login and thought that I had it saved somewhere or written down. Well, it turns out I didn't, and now I cannot access my keychain, and my Mac keeps asking for the "login" keychain. Even to open keychain access, its asking for a password. It is not the same as my login password for the administrator login. Currently running OSX Yosemite version 10.10.5. I have it backed up, I just don't want to reinstall OS X if there is a better way to get into my keychain?

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