What Course Of Treatment Should Be Done For Congestive Heart Failure And Pleural Effusion?

I have congestive heart failure and was diagnosed with it at 12, i am now 18, my doctors have not told me what stage im on, i would like to list the symptoms and meds i take as a way of possibly getting what stage of the disease im in? i take percocet for pain management once a day, some medicine that is used to prevent my blood from clotting, and some other medications, i have fluid build up in my lungs, feel swollen all the time, cannot be scared due to fear of my heart stopping, they have told me until around 25 to live and it terrifies me, they have not suggested a pace maker however they asked if i would like to sign up for a donor heart. please help