Disscuss the situation in the first three acts of Hamlet in your own words. Who is the protagonist? The antagonist?

Disscuss the situation in the first three acts of Hamlet in your own words. Who is the protagonist? The antagonist? How is the theme of revenge developed? Do you sympathize with Hamlet? What mistakes does he make?

The English Renaissance;Elizabethan theater Reading: shakespeare′s Hamlet (1599-1601AD) Act 1-3(Norton, Vol 1, pages1801-1866.