I also have that and have t be carefu. I can not guzzle water or a drink because I can drown myself. Sounds crazy but I all most did it once. Choked a second time. I lost my dog a year ago from that.
CHF can be managed, just like COPD can be managed. Gisela is right: a conversation with your cardiologist is going to be very helpful. If you can't talk with the cardio, then talk with the nurse. You'll get good advice.
There is no cure, only management. Hope you have a good cardiologist and it might help to talk with a nutritionist.
Take care ❤️