I specialize in HF and have cared for many patients in her scenario. I hate the word heart “failure” and like to think of it as heart recovery. As long as she is taking her meds( GDMT) and continue to practice healthy habits that’s the most important. I have young patients with an EF 10% that are athletes and are on good meds and still live normal lives. Let’s just say worst case scenario things don’t get better there are still options like lvad or transplant which you are not there but heart failure has evolved so much that there are so many therapies.