Use it before I lose it!

Had some reluctant inspiration today after seeing on Facebook that Tina Gray is enrolling in an Open University course. Ding! Why don't I do that? I've been talking about studying Psychology for years and keep coming up with lots of real and valid excuses not to: too expensive, too busy, kids need me, too hard, I'm too old/too lazy..... etc etc.
But I really want to have some sort of qualification and the sound of having a Bachelor in Behavioural Studies (Psychology) sounds devine. OK, that's a little soft, but I really really really need to make my brain work now (at 45 apparently I'm considered middle aged) before I get that disease of the brain, what's it called again? Oh! Alzheimers! See!!! It's started already.
And I do love learning about why people do the things they do. This started in my early 20's when I did (attempted) a TAFE certificate course in Human Resources. The Industrial Relations section bored the bejesus out of me, but the semester on Psychology!! My God, I loved it.
I discovered that just studying my family was an exam paper in itself and when I delved into the brain of my ex husband, well that could have been a whole thesis! But of course I didn't finish the course, just one year out of three and I could blame my ex for telling me to stop as it "took up too much of my time" [i.e. took me away from him, who knew what new people I might meet?].
Truthfully, if the whole three years was about psychology I would have stuck it out but it was cluttered with that other business stuff.
So I shouldn't let anything stop me now, who knows if I'll have any thought processes left after 50, two kids and a full time job? And my dreams of being a radio psychologist DJ? That just might come true one day.....

[Not me, not blonde, but you get the picture?
Does this working Mum have the time, besides all the hours I spend watching trash TV and reading hundreds of your blogs?
So tell me listeners, should I chase this dream?