Right knee turning/tracking inwards for over a year: Any specific stretches and exercises?

Are there any specific stretches and exercises you can provide me with? Sorry for the long message and photos below but I want to be as detailed as possible: My right knee points slightly inwards at rest and then tracks inwards when bending (you can't see my big toe when it's bent), whereas my left is completely fine (you can clearly see my big toe). This has been happening for over a year now and I've seen a physiotherapist many times and a podiatrist. I have carried out many strengthening exercises for my hips, quads and glutes as per their instructions (i.e. lunges, step-ups, single leg squats, clamshells, bridges, monster walks etc.). I have performed many, many more exercises for long periods of time. I've also carried out stretches that target my right piriformis. Even when walking the knee won't bend straight, and it makes clicking/cracking sounds when I force it to come down straight whilst doing squats/lunges etc. There isn't necessarily any pain but it does feel unstable and it both looks and feels as if my right foot and knee are out of alignment. Even when I'm standing the knee cap turns in a little. It's much worse when I try to run - the knee does not align with the right foot and caves inwards. When running and single leg squatting it falls/twists inwards and feels very unstable - I still can't run because of this instability. I have not experienced any recent severe problems with my lower back or sciatica, but I did have a problem with my right achilles 2 years ago. Please does anyone have any specific stretches and exercises they can provide me with? I just want to be able to run again (even if its just 5km!). I meditate a lot and I always used to sit with my left leg out in front. When I experimented with my right leg out in front, I noticed a huge imbalance in flexibility between the legs, which you can clearly see. I don't think sitting in this way during meditation was the cause because I noticed the problem with my right leg before. Nonetheless, I now always sit with my right leg out in front.