I think it's a great opportunity for a fresh start.
Teacher training tends to attract a good % of mature students who are balancing family life and studying so they're always a good bunch to get in with - esp as they often get their assignments started early and can lend you the books you need after they've finished with them, and can remind you of important dates and deadlines
Cities are very recovery friendly I think. Loads of non-alcohol activities, clubs and societies to go to and meet like-minded people. Also, there will be loads of AA meetings to go to and meet people as well (might even be Young People specific ones).
I reckon you'll be fine.
