A21 bus from hongkong airprt going to mirador mansion in tsim sha tsui.

I am going to mirador mansion tsim sha tsui via bus A21 And iiy says that Iwill get off at tsim sha tsui bus stop....but I Missed to get off on that station,so what and where would be the next stop of the A21 bus and what will I so that i wll reach the mirador mansion?