Termination of my LLC

The state of Washington has administratively terminated my business for sales tax purposes and I have filed paperwork to terminate the business in Washington as we have moved to New Mexico.  I am continuing to operate the business but will do so as a sole proprietorship.  I believe I should do things differently for reporting on schedule C in 2019 but the Turbo Tax software did not address this type of change.  Where do I find information about what I should do for reporting this business in 2019?