Get it together, Delilah!
(Book)

"Originally published in Australia in 2015 under the title The Flywheel by Hardie Grant Egmont"--Title page verso.

Seventeen-year-old Delilah Green is doing her best to deal with a chaotic life--she is running the family café, The Flywheel, by herself because her father is on a vacation trying to get over his wife deserting him; she is getting flack at school because she is a lesbian, and one of the "in-girls" has started to come on to her, and she is hopelessly attracted to a girl named Rosa, who dances the flamenco outside the café every evening.