How to strengthen long-term weak hamstring (torn in 2016)?

Does your health plan cover physiotherapy? I think that could be helpful for giving you a routine to structure the rehab. I say this because I went to physio for an acute knee injury and we discovered a chronic knee weakness in the other knee. It was great for being able to balance things out and I’m now much more stable and far less prone to minor injuries on that chronically bad knee.