You guys are all doing great!
My core strength is pretty bad. I had surgery almost a year ago to repair a large diastasis that I’d had since giving birth to my children. (They’re 19 and 24.) I had near-crippling back pain and saw physician after physician and not one of them thought to check my abdomen for the cause of my back pain. Finally, one did and discovered this issue. What it means is that my abdominal wall separated in the center and never went back together. It’s virtually impossible to build your core strength with this issue and there was nothing in front to provide strength and stability for my back.
The recovery for this surgery was brutal but at this late date, the only possible way to fix it was surgical. I’m so glad I did because even though my core strength is nothing to write home about now, I can walk long distances and carry heavier things without excruciating back pain that keeps me off my feet for days to weeks afterward.
So core strength is my primary focus, although I definitely want to improve in other areas too.