If you signed something saying you wanted to represent yourself in a criminal matter and were waiving your right to counsel, then the judge should have asked you a series of questions designed to ensure that you understood what you were doing.  You need to confer live with a criminal defense attorney to whom you can show all your paperwork.  There are several in Phoenix who will do initial consultations for free.  Make an appointment to see one of them (or if you are outside the Phoenix area, in the closest city to you).