Hi Doc ! Dis Is Zeba,,,m A 18yrs Old ..i

Hi Doc ! Dis is zeba,,,m a 18yrs old ..i weigh abt 35 kgs n mah height is abt 5.2....i feel skinny...n i feel alot of hunger but it couldn't be satisfied inspite me having my stuff many times.....i have a habit of late nyt sleep....i doze off to bed late nyt arround an average of 1 AM ........can u please suggest me some ways so that i cold put on some weight!!...it would be a great help!!!!!?...