Unsure what's wrong with my ankle.

8 months ago in a basketball tournament my ankle started hurting but I carried on playing for the 2 days later I saw my right foot was swollen (I didnt twist it at all) a bit of bruising barely noticeable and it hurt to walk, I went to the hospital a week later and they thought it was a stress fracture so they took a X-ray and nothing showed up on the X-ray so they said I sprained it so I rested for 3 weeks did a few strengthening exercises and then wore a brace for basketball after the 3 weeks of rest for a few months and the odd times I was in pain but now I’m in pain when playing basketball and walking so I now had to put my brace back on and I don't know what to do even though I have taken paracetamols and tried icing my ankle but none of these have really helped