Answer:
He felt that due to his new role as pharaoh that the people would remain loyal to his thoughts and beliefs, he attempted to institute a new monotheistic religion, in other words a single god in which he named Aten. When he saw that most people didn't listen anyways, he made it required by Egyptians that they abandon their old god and follow this new one. His efforts would ultimately prove to be futile, as Akhenaten and his sun cult were all but forgotten in the years following his death.
Step-by-step explanation: