Red, well done. Keep it up.
Exercise is really important. Work in three areas if possible. a) general fitness levels, walking, swimming or whatever cardio vascular exercise you can do. b) resistance work build up slowly to get lean mass and muscle development. c) flexibility I have added yoga very recently to my schedule. As a beginner I was surprised at how useful it is and despite being pretty active and strong the routines tested me and showed a lot of deficiency in my flexibility.
Build up slowly and don’t over do it tho
Fresh