Since you only got a few hours, I guess there is no need for big content revision. But I would recommend you to rearrange the sequence of your paragraphs, maybe start with the bullying event? I think you need to let the reader know what kind of club you
are talking about at the beginning, not in the last paragraph.
And
Two girls had walked -->walked up to a friend of mine and began bombarding her with insults, while demanding she give -->her to give them her homework. I was forced to watch this horrific event unfold -->with folded arms and the feeling of guilt hit me all too much.
This experience is what inspired me to create the Anti-Bullying Club at my school and by going to local elementary schools and teaching them the consequences of bullying and not standing up, I am hoping that I impact at least one individual.
This experience is what inspired me to found the Anti-Bullying Club at my school. By going to local elementary schools and teaching the students the consequences of bullying and why we have to stand up for each other, I hope at least I have contributed in some way to stop what had happened to my friend occur again.
Good luck with your college application! be cheerful!