Can someone please help me witha report on macbeth?????

please please i need help i need a brief summary of what act 4 and 5 are about what are good symbols and there meanings also what do the symbols represent?? any comments on how the plot ends?? specifically how the climax and resolution are set up and how shakespeare uses the characters, themes, settings, and plot to finish the play in other words how are things coming to an end?? how is the ending of the play and the situation of the characters ironic???? do any symbols show the development of macbeths psyche or the plot development??? please if you answer one of these please have the question first so i can know i am going through a very tough time right now and im busy all the time trying to fix things and i have no time for my work please someone help me with this i would really appriciate it thank you soo so much