I was a single parent with young DCs when I got my MSc. Evenings were a write off - I was just too tired from work, ferrying about drama, rainbows, gymnastics etc. XH had the DCs one Saturday a month for a few hours when I got housework/laundry etc done. What worked for me:
I used index cards to make notes while I commuted. I did have a company car but I allowed one of my team to have it and he would give me a lift home at night. Also used time when the DCs were at horse riding or birthday parties - I'd be the anti social one sitting in the car with my books! The index cards were really portable - could glance over them while waiting on meetings etc.
I would get up early Sunday mornings and get some studying in while DCs slept or played.
I had A3 sheets of things I had to remember stuck on the wall (just as well I had no partner!)
I still had to do a couple of all nighters to get assignments/essays done.
I tried to do another MSc when DCs were young teens - almost impossible. I found that age to be so much more demanding of my time and energy than it had been when they were younger. Also, I have no idea how people manage FT work, childcare, studying and a partner. Probably why so many failed relationships with mature students on my courses.
Good luck with your course. The CIPD is an essential qualification for many HR jobs. It will be worth it if it's the route you want to take.