Notes on Hamlet

I feel like Hamlet has changed gradually throughout the play. Hamlet went from being sad and angry due to his mother marrying his uncle. I felt for Hamlet because if I were in his position I would also be sad about my fathers death and I to would be angry at the fact that my mother married my uncle! As the play continued I noticed Hamlet starting to care less for others and him killing Polonious really made me wonder what really isngoing through his head.