Q: I  don't see "Reset your security questions,help me tnx

That means that you don't have a verified rescue email address on your account (an additional/alternate email address is different), you need to use the 'If you can't reset your security questions' instructions on the page that you posted from : If you forgot the answers to your Apple ID security questions

e.g. contact Support in the country where you are (and which is therefore the country on your account) to get the questions reset : Contact Apple for help with Apple ID account security

If your country isn't on that page then try this form to contact Support : https://www.apple.com/emea/support/itunes/contact.html

When they've been reset you can then add a rescue email address for potential future use : About your Apple ID email addresses - Apple Support