Her fraught, ferocious journey to that career is the story of “Fancy Dancer,” and she performs the autobiographical piece herself, alternating shows with Burgandi Trejo Phoenix. While FastHorse’s facility as a playwright is evident in “Fancy Dancer,” as is her luminosity as a dancer, the show’s simple, direct messaging may ultimately be more satisfying to younger viewers than adults. The dance world itself (there’s one dance teacher in FastHorse’s story I think everyone in the audience would like a word with) isn’t always as comforting. Lara’s dedication to dance and struggle for belonging fuels her desire to participate in the Native tradition of fancy dancing. FastHorse is captivating as a dancer (the show’s ballet choreography is by recently departed Pacific Northwest Ballet dancer Price Suddarth and the fancy dance choreography by Maxine Alex), though she’s somewhat less comfortable in her skin as an actor.