Kidney disease

Sadie has been diagnosed with Kidney disease.  She is my 9 year old Shih Tzu.  Sadie lost 5 lbs in a matter of 3 months.  She is now on injectable under the skin fluids, Benazepril and Aluminum Hydroxide Liquid.  She will need to be on these medicines for the rest of  her life.  I have had he since she was 8 weeks old.  I live on Social Security and would be just Devastated to lose my fur baby!  I also have her half sister Pennie who would also be just as Devastated as me!

Please help me.  Thank you all so much.