Need to reset my security questions or just delete my apple id

You will have to work with Apple support to regain access to that AppleID if you wish to delete it. To delete an AppleID, you must be able to login to it. That act of successfully logging into an AppleID you own and control is what allows you to request it’s deletion in the first place. If you cannot login to an AppleID, you cannot even request it’s deletion, and Apple would never delete an AppleID if you cannot demostrate you control it by logging in successfully.

See -> How to delete your Apple ID account - Apple Support

➢ Change Apple ID security questions.

To reset security questions:

➢ Contact Apple for help with Apple ID account security. 