my doctor just told me this is what is wrong with me (physically.. he declined to comment on whats wrong with me mentally

). This sucks bc now i have to go through three months of physical therapy. he said the reason is that the outside half of my right quad is significantly stronger than the inside so the patella is being pulled to the right. so it hurts to go down stairs, to run, to squat, and, oddly, to sit for long periods of time. i am glad i dont need surgery but i am really bummed about this. i am in the process of training for a triathlon plus i also do jiu jitsu and kung fu. i had to stop my lifting routine bc it was too much pressure on the knee. i jiu jitsu i can't through ppl, or shoot on them and i can't use rubber guard. in kung fu i can't kick properly and can't put much torque on the knee without it hurting a lot. and running and biking hurts like a bastard. at least swimming is still ok.
ok so i done venting and i will now get to the point. i am curious does anyone here have any experience with this particular problem? one thing i forgot to ask the doctor (most likely bc i was mentally reeling from the 3 months of PT) was if i continue to do stuff will it run any risk of permanently damaging the knee? i don't want to take a break in my martial arts training and i won't take a break in the triathlon training so i just want to make sure i am not going to royally screw myself by exercising with it. if its just pain i can deal with it but if continuing to use it is going to eventually result in a need for surgery i will have to tone it down. any advice is appreciated.