I know what you mean! I have two children also (ages 6 and 2), and am constantly feeling guilty that I am taking valuable attention and time away from them. However, they are both so understanding when I say I have to study and usually join in by looking at books or coloring. There are times when they are super energized and studying is not an option, so I don't. I'm probably wasting valuable studying time but to me the boys are way more important. I think mothers who are students probably lose a lot more sleep. I try to study when they go to bed, sometimes I have the energy sometimes not. It can seem overwhelming at times, at that point I start taking it one day at a time, or an hour, or a minute depending on the situation. You can do it and your kids will be proud of you when you graduate and that is being a great role model!