Two years ago i fell in a hole and my right foot went side ways and it still hurts and sometimes i can't even walk what could it be ?

Ankle injury: ankle injury 2 years ago, there are different potentials here there can be ligament or tendon injury or dislocation of part of the ankle joint, the other potential is injury of one of the nerves or the vessels or bony injuries (fracture) pain lasting this duration warrant review and possible imaging with X ray or MRI

As its been 2yrs-: -it's most likely due 2 ligamentous laxity, especially if the injury caused a lot of swelling, & if bothered you for for some weeks after. Have it evaluated by a fellowship trained orthopedic surgeon for hands on exam as well as imaging.

Only Pain?: Curious that the symptom described is pain. The appearance of swelling, stiffness and discoloration might add to the elements of the injury. Two years is a long time and if pain is your only symptom, you will need to have some images taken as well as a targeted physical examination.