If you are the sole owner, you should not have a K-1 unless you are filing your business as an S-Corp. If that is the case, the S-Corp cannot be set up with your SSN as it's EIN.
If you are filing your business as a Single-Member LLC reporting as a disregarded entity, you can use your SSN for the business, but you will not have a K-1. You will report your income and expenses on a Schedule C.
I would advise filing an extension for your personal return for 2021 and contacting your attorney that set up your business or a local tax professional to ensure you are reporting correctly.
To file for an extension in TurboTax see How do I file an IRS extension (Form 4868)
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