How To Treat CKD With This GFR Level?

Hello! I was recently dx with CKD stage 3. My GFR is 44. It has been trending downwards since 2013. It started at 58 in 2013 and March 3, 2015 it was 44. I am 44 years old, healthy otherwise female. Take minimal medications. My blood pressure on my last visit with the physician was 102/60. I am slightly overweight, but am working on getting it down. I work out and am very active.I am wondering what the probability is for me to overcome the CKD?