Currently, there isn't a way to create a balance sheet in QuickBooks Self-Employed (QBSE). This is because the program helps you track your business-related transactions and calculates your federal estimated taxes. This way, it helps you make quarterly estimated tax payments and file your Schedule C along with your annual tax return (1040). For more details, check out this article: QBSE Overview.
I'd also suggest visiting this website: Self-Employed Individuals Tax Center. This link provides you more information about the tax obligations for the self-employed individuals, just like you.