I entered all my tax info and the software let me all the way through payment. To file an extension it starts the process over! How do I carry my tax info forward?

Unfortunately, your information will not copy over to file an extension. However, you information will be saved when you come back to file your return.

Here are instructions to file an extension in TurboTax: https://ttlc.intuit.com/replies/3301811

After filing your extension, you can finish filing your taxes by following the instructions in this FAQ: https://ttlc.intuit.com/replies/3934734