Im Having Pain On My Lower Back. Can You Help

Im having pain on my lower back. Can you help me out? I fell from like 4 ft and i landed in my lower back , when i landed, i felt the part of my hip down twist and i heard a crack. I can walk around and but i cant lift heavy objects, run or jump because it hurts. Sometimes i cant get up normally and have to move in a way to get up and i feel stiff from my lower back.