Hi, I need help and advise on how to figure out how to turn the emergency brake light off my dashboard on a 04 F-150 STX model, can anyone help please?

 

I believe that light has multiple purposes.
One is the parking brake "on/not fully released" and the other is a possible hydraulic brake system problem. Could include low level in brake master cylinder or loss of fluid/pressure in one of the hydraulic brake lines/components.
Strongly suggest that you have your vehicle for checked for any hydraulic brake system problem.