Macbeth Questions Act Five, scene 8 What does Macbeth’s line: “My soul is too much charged… already” mean

Scene Eight

14)  What does Macbeth’s line: “My soul is too much charged… already” mean?

15)  What is significant about Macbeth being tricked in a “double sense”?

16)  Macbeth is killed brutally.  How does this parallel another event early in the play?

17)  Who is King in the end?

18)  What prophesy was not fulfilled?