Tagzy,
A long time ago I know, but I did a Jt Hons Science Degree and went straight from year 3 into ATC training. It was much more intense than uni'. After each day at college in Hurn, there was 3-5 hours of study. Saturday was my day off, and it was back to the books all day Sunday.
You have to be on a full-time course with others. The study material is open to many different interpretations. It's not like doing a PPL course.
Good luck, whatever you decide to do.