I am 17 year old boy my height is now 5′6ft or little bit higher like 169cm

i hav my first ejaculation at nearly 15..
and now i am 17..
is it possible to hav growth spurt at 17 as from 16 year i am 5′6ft..
any way to increase height plzzzz
my elder 2 brothers both are 6ft tall..

help me out