Morning Kyle I accidentally created two websites instead of just one, How do I delete the other one?

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AbieAJ Premium Plus

To delete a siterubix subdomain | dot com, click details on subdomain | dot com domain in question in site manager, onward next page scroll all the way to the bottom and click delete.
AbieAJ Premium Plus
Then you may go to Site Builder

Choose a free domain, domain you own or register new, enter credentials and follow procedure.

Hope this helps.
jghwebbrand Premium
If you are referring to a free website, here is how to can delete it.

Menu Bar -> websites -> Site manager -> find your website
Look in lower right hand corner for "details" click on it.
Then scroll down and look in bottom left hand corner for "delete"