It wasn't the right choice then, but (putting aside all issues of debt) do you think you'd get more out of it now? Or in a decade? I really enjoyed university, got a lot out of it, but I'm getting even more pleasure out of taking another degree part-time now around my job and the thought of taking three or four years off now purely to study and learn and mentally play is much more enticing than the first time round.
Maybe it's just because I'm older, maybe it's because I've been working for a decade, maybe some other set of reasons, but I think I'd get a great deal more out of it now than I did then (which is not to say I didn't get a lot out of it; I did, but I'd get more now).