I am sorry but there is not a reset/restart option . Once a storm ID is set on a device, you cannot start over. If you have another device you can transfer the storm ID and games over to that device, then you can download new games to your current device.
Also please note:
Users must be 13 years old or older to play. Users under the age of 18 must have their parent or guardian's permission to play.
You can view the Terms of Service here.