I was still able to graduate almost at my 40'
That is wonderful!!
I went back to school when my kids were small, but that was mostly for self-gratification. I only took one course a semester, and didn't even bother to complete the degree requirements because I didn't want to sit for my orals. Then later, when I was a teacher, I needed that degree to get full certification, so I had to do it all over again while I was working full time and had children. I did it remotely, so that took some pressure off.
Your English is so very good. I'm always amazed at your level of mastery.