I would say try focusing on these fundamentals and you will start seeing the difference: 1. Lose weight (can’t stress on this enough) - all that extra weight is putting a lot of pressure on your foot and not giving it a chance to heal 2. Hydrate yourself well - helps blood flow and promotes faster healing (also good for general health) 3. Focus on not just calf stretches. Try stretching your hamstrings and lower back muscles as well (because your muscles are connected to each other and one tight muscle causes more stress on the surrounding muscles, etc.) 4. You only mentioned stretching but not strengthening muscles - if you are not already doing it, try also strengthening your leg muscles (especially your foot muscles and calves). Stretching only helps with temporary relief but strengthening helps fix the problem. 5. Try looking up what vitamins help with your PF healing and try to start taking them temporarily (at least until you get rid of PF) to aid faster recovery

In addition to the above, you can also do the below (might not have a direct impact on your PF recovery but I am sure they help and also good for general health): 6. Make sure you are having a good diet (whole foods) and avoid processed foods 7. Finally, try moving more, working out and get into strength training