I hyper-extended my wrist and I got an X-ray and they said no bones were broken but I can't extend my wrist backwards which is resulting in me not being able to lift weights in my right hand or even do push ups because my wrist can't go back that far and I feel pressure in my right palm when I do workouts. What can I do to rehab this and get it better. I don't have insurance to get an MRI but I asked for one and instead they gave me an X-ray.

Summarized question: How can I rehabilitate hyperextended wrist?