I'm currently studying West Coast American (Los Angeles specifically, so "Hollywood" accent) with a tutor I found on Preply. We're using a book called Mastering

I'm currently studying West Coast American (Los Angeles specifically, so "Hollywood" accent) with a tutor I found on Preply. We're using a book called Mastering the American Accent by Lisa Mojsin, which comes with audio tracks. Getting feedback would be ideal (hence a tutor), but maybe you could use the book by yourself?