Accrual Accounting Issue on Schedule C

I started my business in 2021 & for tax years 2021, 2022, & 2023 I listed the business as using accrual accounting on Schedule C. In hindsight, I really should have used cash method accounting instead (all the income reported for those years was done on a cash basis via 1099's).

What's the best way to remedy this? Should I file amended returns for those years to change it to cash basis? Should I instead just file the form needed to change the LLC's filing status from accrual to cash? The income reported won't change, but I'm stumped on how to fix it for 2024 tax year and beyond.

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