Jules I think that's awesome about you being a special education teacher. Don't worry about being an older student at Uni. My daughter Adele told me they had heaps of people in their 40's 50's and 60's there, one lady was 76 and getting a uni education.
My 21 year old son Mike made best friends with a guy who was 55 (that was 2 years ago and they still hang out)
It'll be an exciting experience for sure.