Making my hairr length longer fast?!?

Making my hairr length longer fast?!?!? My hair is about to my shoulders maybe a cm. Above them. I want my hair to be atleast to the bottom of my boobs by end of august. What can i do? Ive been using john frieda root awaking and heat protection and i rarely straighten or use heat on my hair and i use split end mender too. What else can i doo!!!??? A