If Etsy pays my taxes on their end, how do I make sure I am not double paying?

I can provide you with some information that will assist you in handling your transactions, @abkjewelry21-gma.

You can double-check your transactions and exclude those that you don't want to be included in the calculation of your estimated taxes in QuickBooks Self-Employed (QBSE)

Refer to the following article for more information about excluding and reviewing those transactions in QBSE: Exclude or delete transactions in QuickBooks Self-Employed.

I also suggest consulting an accountant for guidance on how to avoid double-paying your self-employment taxes. 

For more information about how QBSE estimates your federal quarterly tax payments and what you need to pay each quarter, check out this article: How QuickBooks Self-Employed tracks self-employment taxes.

If you need any more assistance with your taxes or anything else, please let me know by posting a comment below. Enjoy the rest of your day!