Congrats on going back to school
I did so too a couple of years back after 11 years + of being out of school and it was quite the experience!
I loved it and am sure you will too
It can be quite scary when you've been out of the "loop" for some time but trust me, you'll get back into it really fast.
Personally I found I liked it so much better going back to school older. I did it because I wanted to and took it way more seriously. It also showed immensely in my grades.
Good luck and keep us posted