MIAMI GARDENS, Fla. (AP) — Formula 1 driver Valtteri Bottas believes the support in motorsports for mental health struggles has greatly improved during his career, and that gave him the courage to extensively detail his own personal battles. “The sport has changed a lot, the world has changed a lot,” Bottas said Thursday, a day after he discussed his own struggles in an essay for “ The Players’ Tribune .” “There’s better ways for people to communicate and share their issues, or anything from