Rolled ankle in april and reinjured it in november by stepping wrong. How long does an ankle take to fully heal? I may have torn something in my heal.

1-1.5 yr. A small percentage of patients with severe ankle sprain hurt for up to one and a half years, post injury according to the most recent research available (10%).
Ankle. You would benefit from physician eval, x-ray and physical therapy. If no progress after 4-6 weeks of rehab, then would get an mri. Most common cause of prolonged ankle pain after sprain is inadequate rehab.