I fell from a 5 to 8 feet ladder and have a compound fracture of my tibia at walmart i should i do

Im a backroom associate and I was picking a large child stroller from top of the steel 12 feet give or take. When I pulled to bring it down the weight of the stroller in the box came towards me so I pushed the box away from me, but the top steel had a corner rail that the box came towards me pushing me. I held to the beam and dropped a couple of steps on ladder thats when the ladder moved,and I let go from the beam dropped. I tried getting up but felt my leg, like it had a bad cramp so I sat down and laid with my leg on the floor and called out for help no one came, when I was about to call the ambulance, thats when a coworker came and I told her to call management then they called the ambulance .