Eunice here from the Shopify team. Thanks for your post and welcome to the Community!
I'm sorry to hear you're not able to access your store right now. I know all too well that new store excitement, so let's get you back up and running asap! To get immediate assistance you can Shopify Support via online chat:
A Shopify Support Advisor will be able to access your account, assess the situation, and take the necessary steps to investigate the issue.
We look forward to welcoming you back onboard soon!