Diagnosed with osgood schlatters 4 years ago.18 now and still having pain.done growing.cant squat without lots of pain.what should i do.i work a lot. ?

See ortho doc: suggest you check out this problem with orthopoedist or internist.

Just the fact that-: -you have not grown in height, your skeleton may not be mature. There are many ways to imagine you to check maturity. If imaging proves that you are skeletally mature, there may be imbalance of the patella or chondromalacia of the patella . See an orthopedic surgeon or if your insurance allows, see a fellowship trained sports medicine orthopedic surgeon.