I am writing a book that begins with the protagonist having amnesia (cliché, I know). At first, I wrote it in the first person jumping from one character to another, however I had to write a whole chapter from that specific character's POV. Third person lets me jump from one character's POV to another quite easily in just a matter of paragraphs, but how can I do this in the first person?
So my question is, what should I do? If I decide to write it in the third person, how do I refer to the protagonist (who doesn't know her name yet)?