How do I file taxes when I'm an exotic dancer and get paid by tips only

if you work multiple clubs you might be an independent contractor filing schedule C. report gross tips and expenses. however, if you only work for one club: 

whether workers should be classified as independent contractors or employees, the National Labor Relations Board (NLRB) found that an exotic dancer at the Centerfold Club in Columbus, Ohio, was an employee rather than an independent contractor. In Nolan Enterprises, Inc. d/b/a Centerfold Club, 370 NLRB No. 2 (July 31, 2020), the Board’s majority rejected Centerfold’s claim that the administrative law judge (ALJ) “failed to properly evaluate the common-law factors through the prism of entrepreneurial opportunity,” as required by prior Board precedent.  If this is your situation, confer with a labor lawyer since you and your employer would be subject to all the federal and state labor laws and you should have gotten a W-2.