i forget my security questions

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

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

ASC - Late 2012 Mac mini, macOS 10.15.1; Watch, series 5 GPS/cellular, watchOS 6.1; iPad Air 2, ipadOS 13.2.3; iPhone 8+, iOS 13.2.3; TV 4th Gen, tvOS 12.4.1;  HomePods, audioOS 13.2.1 and Airport Express w/ Airplay 2

contact Apple ID Support.

Apple ID Support

Apple ID Support (2) 

Apple Support by e-mail or chat    Work through the screens to get a chat option. 

Apple Support using Twitter

Or fill out and submit this form.          The form is for iTunes, but it will get passed to the ID Support section.