How to gain 30 kg in 1 month?

Patient: I need to gain weight could you help me achieve that?I am 14 years old and 44kg i eat normally but everything i eat nothing seems to be gaining on. Ive been trying for months now but nothing seems to be happening i weigh myself everyday i am struggling.My aim is to be 60kg at the end of March or April 2014 and to gain some body fat too.i have tried every website known to man nothing is happeningplease help me what can i do?

Doctor: