Why dont you just change your Apple ID (your email)? Make a new Apple ID and do the security questions that you will remember. Also, make sure you write down all the info with your Apple ID for later refrence.
To create a new Apple ID, follow the easy steps below:
Settings > Itunes and App stores > Tap "Apple ID: (YOUR APPLE ID IS HERE!)" > Tap "Sign Out" > Tap "Create New Aple ID"