Hiya, I'm also a mature student, at 29. It's brilliant, you definatly won't regret it! I did my level 2 last year part time, and then this year am doing my level 3 complementary therapy. (It's counted as full time, but is more like 2 1/2 days a week).
I was worried about being with a load of 17 years old, but there were ladies in their 50s on my part time course which wa really nice. And the girls on the full time course range from 18 - 40s so that's lovely to have such a mix of ages
Let us know how you get on with the course! It's exciting isn't it!