To begin doing philosophy, try answering the following questions:
Personal Identity. Are you the same person you were when you were born? Would you be the same person if you lost all of your memories? What if you changed bodies?
Ethics. What kind of life should you live? What are your responsibilities to others? Are there moral standards that everyone ought to adhere to, or are morals relative to a person's culture? Either way, how can we know?
Mind and Body. Is your mind distinct from your body? If so, can your mind outlive your body? Could machines have minds?
Knowledge. What is the difference between knowledge and mere belief? Can there be false knowledge, or must it be true? How is knowledge related to certainty?
Religion. Do deities
(such as the Christian God) exist? If so, how can this be proven? Is faith
a satisfactory grounds for belief?