Can Chondromalacia Patella In Knees Be Treated By Physiotherapy?

Namaskarom sir. I m a 35-yr-old lady with chondromalacia malacia patella. Due to a fall in 2013 Oct,I underwent surgery for microfracture in left knee with prp injections twice.Things were moving fine after surgery,but sir to my bad luck I missed steps and fell down in Jan 2016. Dr diagnosed as chondromalacia patella on both knees. Currently im on cartipep sachet,calcium with vit D tabs n on physiotherapy with bed rest to avoid further wear n tear. Sir just tell me is this curable by physiotherapy n if so how long will it take for a complete cure?I cant sleep, highly depressed n I think of putting an end to everything.I have a 7-yr-old son n so im helpless in ending too.I was of 63kg in Jan n I gained to 71kg which adds pressure to knees again.(155cm ht) TSH is ok,but very low cortisol only .50. My hand shivers n always feels fatique,losses temper. I dont know what is happening to me. I hate myself now...my life has turned upside down. Plz tell me sir what to do.im kripa from Trivandrum. I m in need of ur help.