My mother and I co-owned a business. I told her goodnight as she left on evening. She never got out of bed the next morning. As much as that hurt her very words came back to me.
The way she would lighten up a funeral by telling funny, yet life changing, stories about the way the deceased lived. What amazed me is she could always find that in anyone.
We all look back in one way or another. For me I have to think if I would have know that was the last time I would have...... It appears you have become a Liberty loving person. Your mom did well and I am sure she is proud of you. The last thing she would want is you feeling guilt over her. No parent would want that.