Nonfiler covid 19 stimulas to add my direct deposit. Now that I’ve got my taxes for 2019 it won’t let me efile. Says duplicate SS#. I didn’t file 18 so how do I amend?

Do the nonfiler on irs website. Afterwards used turbo tax self employed and done my taxes. It will not let me efile and says duplicate. SS#. How do I change my income on what I done on stimulas website for nonfiler or what do I do now that I have my 2019 taxes prepared?

Please help me!!