yeah learn to deal with him or realize that this is only a beggining of one of your many life cycles there will be a time when you are done at school and you wont have to put up with this guy when did he start talking to you like this? was it after you told him to stop giving your brother smokes? how does your brother feel about this person? what type of attitude does your brother have towards you?
You're not going to find yourself by following anything that is not yours. The Buddha developed a path, a means to self realization- Buddhism doesn't "give" anything, really. It's up to you. You may be a violent and angry person. That doesn't mean you should just accept it because it's "you". That, too, will lead you away from self realization. You're not something static and unchanging, you're not "tied down" to any method of operating. Giving in to this is giving in to illusion. You just need to ask yourself- where is this taking me? You beat some kid up. Where are you now? You punched a cadillac- where are you know? Where have all of these actions led? It is somewhere that is positive? If you just take time to look, you'll understand that all actions have a consequence... it's up to you to be able to recognize when A leads to B, and more importantly, whether that is a path you should be going down.