Mom seems to be handling this whole thing remarkably well. I was afraid initially that she would make everything worse on herself with stress and worry, as that would be easy to do! Instead, she has been doing a commendable job of focusing on the things that she loves and that are important to her. She spends a lot of time in nature.
I find it hard to deal with the fact that Mom was fine up until the time she found the lump. Living her life with no idea that this was brewing, and no outward sign of sickness. Cancer can quietly creep along as you lead a full and healthy-seeming life.