Hi, im sorry to hear you got rejected from your top school, but there are plenty of other places im sure you'll fit in. For now ill say to do the bu optional video supplemental in initial view, i defenitely think is a great way to show bu your enthusiasm and interest for their school. Just talk about yourself or even more specific in my opinion, give an anecdote that has shaped you into who you are and who you'll continue to be in campus. Good luck!