Treatment options??

I am a female age 48. I am 5'6" weight 260. I have struggled with my weight for 20 years!, I had my thyroid removed in 2006. I have been very tired and just can't seem to hold out to do anything lately. I also have fibromyalgia and degentive disc, I am all ways in pain. I recently was hopsitalize for pain and the ER Dr notice how swollen, he asked how long this has been going on? I explained about a week. He thought that the neck and upper back pain my be heart related. He admitted me and ran blood test and echo. It was found that my Ejection fraction was 40 and I was told that I have Cardiomyopathy (systolic heart failure). I have been on metoprolol 25mg 2xdaily for yrs for MVP,PVC and high blood pressure. The Dr. took me off that and put me on Carvedilol 3.125 2xdaily, Lisinopril 10mg daily and Furosemide 20 2 xdaily. I am also sceduled to have a sleep study for sleep apnea. I have sleep apnea and I also have insomneia I never sleep more that 3-4 hrs a night. So with all my condictions do your feel that I am on the right treatment??I have tried to look up info on this but there is always a name in front of cardiomyopathy, I do not know what mine is?? I would appreciate any feed back you can give me. Thanks Tammy P.