let me start by saying that valve leakage is not very rare. With many people, echos show more or less regurgitation, mostly trace or mild however.
When the regurgitation is moderate or severe, more monitoring is needed to see if it progresses and if it affects the heart sizes/shapes.
Mild tricuspid regurgitation is not a real problem.
In the longer term, moderate/severe mitral regurgitation can cause overload of the left heart, often starting with enlargement of the left atrium. This is something to stay ahead of, because it is the start of lots of irreversible heart trouble, like afib, hypertrophy of left ventricle etc.
Carefully planned mitral repair surgery is the way to go in this situation.
The best moment for repair is not only defined by the current situation but also by the speed at which things are progressing.
In your case, with moderate dilated left atrium, it seems to me that your heart has already started to compensate. I would really consider getting the surgery done soon to avoid irreversible damage to your heart.
Another very good reason for not waiting any longer is that you are suffering too much from the effects of your heart condition.
You need to be able to take care of your children and you can not do that when you are spending days in bed and feeling the way you describe.
Thank you so much. I truly appreciate you taking the time to respond. Many blessings to you.