I'm a 3C and I was just wondering some ways everyone straightens their own hair.

I like my hair flowy and not greasy, but shiny. Oh and I also like a soft feel. So the way I straighten my hair is like if I went to a Dominican salon. (The blowout: Blow drying and then flat iron) If you do the same I would also appreciate tips on how you blow out your hair.
16, mixed (Black, White, Cuban) 3c. Just trying to grow these curls