Hamlet, whats the point?

My home school group is now studying about Hamlet, yeah for me. I though Julius Caesar was bad, but no Hamlet is worst. He is so crazy and messed up that he doesn't seem crazy anymore, you begin to think like him, scary. Polonius is the real crazy one though he is so mean to his kids, esp. Ophelia, he tells her that she can't see Hamlet anymore, but then tells her to flirt with him so he can find out what is making him crazy. All Polonius wanted was to get on the king and queens good side so they're nice to him, loser. I feel bad for Hamlet, he is the only one that seemed bothered by his fathers death and what makes it harder for him is that he knows that his uncle killed him. His mother doesn't help at all, Hamlet is so mad at her for getting married only two months after her husband died, to his uncle, and all she tells him is to get on with his life. Hamlets only true madness comes from his grief and he feels like he should do something about his uncles murderous ways. They all die in the end of the play anyway, the king, the queen, Polonius, Ophelia, hamlet's friends, Ophelia's brother, and then Hamlet, so what was the point anyway.