How to dye my hair properly?

[Rachel]

I kind of want a hair color like this http://instagram.com/p/fbwMkISy1H/
sort of like an auburn colour. Which kind of hair dye should I use? It is my first time dying my hair. My hair is a dark brown but some pieces are lighter. In photographs my hair looks black though. My hair is also really long too if that helps. After dying it auburn i might want to ombre it after but i'm not sure about that yet. thanks in advance!