Conclusion
There is a very wide outlook for people with CHF. It mostly depends on the stage of the condition, the person is at, and any other medical issues they may be experiencing.
Also, younger people might have more optimistic outlooks. Your condition can be significantly improved with medication, surgery, and lifestyle changes. To find out which treatment option is best for you, consult with your medical team.
References
[1] https://www.healthline.com/health/congestive-heart-failure
[2] https://www.ncbi.nlm.nih.gov/labs/pmc/articles/PMC3038918/
[3] https://my.clevelandclinic.org/health/articles/16950-ejection-fraction
[4] https://diabetes.org/diabetes/type-2
[5] https://www.ncbi.nlm.nih.gov/books/NBK576405/
[6] https://www.nhs.uk/conditions/heart-failure/