I've partial thickness ACL tear along its femoral attachment. I'm 19 years old and a sportsman too I can't run from almost last 3 month. Please help

See a specialist. Partial ACL tears do happen but are very uncommon. Often a radiologist will make that diagnosis but does not mean it is correct. See a Sports Orthopedic surgeon who can give you a correct diagnosis based on the MRI and a good exam. Even if it is torn, pain is uncommon with running after 3 months. There may be more going on.