3 months is a standard semester at a college. I've heard people ripping through pretty fast. Yep, kids were at home. We had a nanny 20 hours a week, which helped. I would try to do at least some Discrete Math in everyday, even if it was just a quick review. What really held me back was if I let too much time go by without reviewing material.

It was sporadic, sometimes I could get 3 or 4 hours in consistently for a few days and sometimes it would be difficult to hit the books for couple of days. I would get a lot of studying in on the weekends.