The website to Athabasca University is:
I too have the same concerns about motivation, being "older" and all. Things I have done to help are:
1) Set definite timelines. There is a study plan with each course, which I modify somewhat. You have 6 months to complete a 3 credit course. I have done 2 of mine in 2 months, and I am 2 1/2 months into the 3rd.
2) I have sought out people to study with. The college in my community offers a Post RN program in collaboration with the UofA, but their classes are in the daytime. I found 16 people to take a Health Assessment course (which is transferrable to Athabasca), and the college is running an evening course for us starting in September, and a Research course in the spring. They are accommodating us because of such a high demand. I think a combination of home study and classroom will help keep the motivation going.
3) Utilize your tutors as much as you need to. They have all been fantastic so far.
4) Don't be too hard on yourself. Accept that it may take a little longer to get into study mode, but I suspect it won't take too long.
5) Rejoice in the fact that you are doing something for yourself. My kids are pretty much grown up now, and I can finally do something for me. It feels fantastic!
Good luck in your studies.