Concerns about heart health

Hi, for several years I've experienced less stanima, fatigue and some shortness of breath with exertion. A very recent echo indicates that I have a minimal tricuspid valve regurgitation and left ventricular dysfunction (don't know the degree yet). I'm being referred to a Cardiologist but the appt. hasn't been set yet. I'm thinking that this is the beginning of the end for me. I'll be 65 in Sept. If you've experienced this, please share what I can expect, etc. Thank you!