@wajhik86
ADDENDUM
How did you prepare your original 2018 return you filed? Did you use Online TurboTax, and then upgraded too far to Deluxe after filing? If so, then you will need to phone TurboTax Support as discussed above.
Or did you prepare your 2018 return outside of Online TurboTax--either using the desktop software or another provider? If that's your situation, you can still salvage the situation. We can tell you all the steps on what to do if that is your situation, once you clarify.
