Help for fractured talus and heel 14 weeks on

I broke my left tibial plateau three months ago. When cleared to go full weight bearing we identified that I had also broke my heel and talus. 14.5 weeks on I am exhausted. Still on crutches and worried I may never heal. My osteopenia has me doubly worried. I am using ultrasound on the fractures twice a day. Taking all the vitamins. I would like to know if others have healed from foot fractures in their 60s. Thank you.