How can I change my source email ? And I forgot my security questions and I can not enter my source email??

Hey Hym-h2o,

Welcome to the Apple Support Communities! If you cannot reset your security questions due to not having access to your rescue email address, you’ll need to contact us for assistance. The following resource should help you get started with that process:

If you forgot the answers to your Apple ID security questions - Apple Support

http://support.apple.com/en-us/HT201485

If you can't reset your security questions

If you couldn't send a reset email, don't have a rescue email address, or can't access email at your rescue email address, contact Apple Support. Apple may ask you to generate a temporary support PIN to verify your identity. After you reset your security questions, you might want to update your rescue email address.

Thanks,

Matt M.