Yes, it means to create a whole new account. Since you are now filing without your spouse, you would need a new account since your joint account would have both of your information in it.
How do I start another return in TurboTax Online?
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-online/00/25596