Hello @jhzbookkeeping,
You can a new account by starting from scratch with a new email address. Let me show you how.
Normally, an account with self-employed requires an email address for a subscription since it'll be automatically used as your username with logging in to the account.
With this, you can start a new account by going to our QuickBooks Plans and Pricing page. From there, you can select Self-Employed under Freelancer to start your new journey.
Additionally, I've also included this reference for a compilation of articles you can use while working with us: QuickBooks Self-Employed Overview.
If you have any other questions, please let me know by leaving any comments below. I'll be here to lend a hand.