That might help you decide whether it's doable.
My first (and only) course was somewhere in the middle in terms of effort, and the courses I was most interested would have required another 50% on top, which wasn't going to work for me, between work, parenting, other learning etc.
It's doable, that's all I'm saying. But you will definitely need to be committed to see it through to the end, and you will be happy to have your life back when you're done.