How Would I, As A Minor In The Us, Publish A Game To Steam?

Hello, I'm 17 years old living in SC, and would like to publish a game I've been working on to Steam.

My mom created an LLC for me, since minors can't legally form an LLC (correct me if I'm wrong).

She added me and herself as members of the business (and me as the "owner"), and we have the necessary paperwork (including an EIN), but when we went to the local bank, they said that they cannot setup a separate business bank account for me since I am not 18 years old.

Is there anything I can do to publish this game with a separate bank account? Can I set up a PayPal account maybe?

Thanks for any help.