Hi Molly, I definitely understand your concern if you are not able to sign into your store account or are having issues with your admin access.
If the website is still live, then that means that your account is still active on our platform. The first step is to check your account owner email address to see if there are any notifications or emails from Shopify. Please ensure to check your spam/junk box as well.
If you do not have any communications about your account, please then reach out to our authenticated support channels for additional help. To access our authenticated support, please follow this link: Shopify Help Center. Next, you will want to follow the on screen prompts to sign in, choose your topic and issue and at the bottom of the help articles provided will be all available support options.
Our support will be happy to investigate this with you further.