First sorry to hear about your lost; I understand this is a tough time to sell a home.
There is no easy way to say how to do a quick fix, but the most common mistake in Real Estate is doing business with a friend of the family. I constantly am fixing this problem for listing that have gone south. You have to be able to be honest about expectation, goal, and most importantly your back pocket with your LISTING AGENT. Most people find this hard to do with a "family friend".
The simplest thing to do is to start over. Interview a few agents. Get an out side prospective,.
I hope this works out for you.
Let me know if you need anymore advice.