Want to be an Occupational therapist... but not sure what to do?

Is it possible to go to a school for pre occupational therapy at a school that's not accredited by AOTA but then attend an accredited school for my masters in OT? Not sure what to do I am older and am enrolled at a state school that offers pre OT but the school is not accredited by AOTA. I always wanted to be a Dietitician however a couple years ago my younger brother suffered a traumatic head injury and worked with a lot of OTs. I also went to school for special education many years ago because I have always been interested in working with disabled children. However I quit school after a couple years. I know for sure I want to be an OT but I am having trouble getting started. Thank you for any help!