It's Not All Downhill From Here by Terry McMillan

At 68 Loreatha is looking pretty good. She has a great marriage, a close-knit group of friends and is successful with a couple of beauty shops. Her relationship with her addict daughter and antagonistic sister could use some work and she could stand to lose some weight for her health but nothing too horrible. A series of surprises, the first being the death of her husband and his son turning up out of the blue, sets her ship on an unstable course. Hopefully, with the help of her friends, she will sail calmer seas. Terry McMillan's writing speaks to women of all backgrounds and ages. She serves up guidance with a dose of humor to get us over the rough spots. Fans of her other books will see nothing different except the average age is a bit older.