I think its great that you are doing this, fact is I think it is wonderful!

Have fun learning as Jen said, and your not too old. I went back to school a couple of years ago, I felt like old, the other students were all so young. I had to stop going for a while after I fell and got broken. LOL. Couldn't drive with a broke foot. I told everybody I didn't know what I wanted to be when I grew up.
I am 51, so I still have time before I grow up. I haven't went back yet.

I am just so proud of you!

Willie