I have decided to not complete my turbo tax account for my 2019 tax return; how do I cancel my turbo tax account and eliminate my personal infomation?

Once a TurboTax account is created, it cannot be deleted.  You can simply abandon it. Per IRS regulation, we must keep copies of tax returns filed in TurboTax Online.  If you'd like to clear any data that you may have entered into the program, you can use the "Clear and Start Over" feature.  See instructions below.

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-clear-and-start-over-in-turbotax-online/00/26444