Am 20 n ma penis size is one inch......hw can i grow it?

in ma early age wen i was in ma village a gal used to suck ma cock.unknowingly bcoz of ma small age i 2 used to njoy it.bt now am realizing that all ma friends have a big cock n it feels so embarrassing wen they talk abt there penis size... so can i grow it larger at dis age....is there any treatment or any home remedies.....plzzz suggest your answers guys.....