I need to go in a bit to finish off some Civil Litigation stuff.
Quick rundown of the basic stages of legal education:
LLB - it's okay, it's very academic (obviously). You learn about the history of the law, landmark cases which illustrate or create legal principles, statutes etc. You will be able to moot - there's an ongoing inter-university mooting competition, as well as one for client interviewing. There might also be chances for Pro Bono work, depending on the uni. Overall, it's fine if you do the work when you get it, read around the subject, etc. Don't stress yourself out over it, but do take pride in it, have a passion about it.
LPC - Legal Practice Course, the route you will take at post-graduate level if you wish to become a solicitor. It is very, very intense, and very practical, and very different from the undergraduate LLB degree since it is more about application of legal principles, rather than merely comprehension of them - it is training. You'll be able to do advocacy and client interviewing, as well as participating in Pro Bono work if the university offers it. You'll learn a lot about civil procedure; conveyancing; business law; and criminal procedure. You'll also be able to study electives of your choice, but naturally what electives are on offer depend on the university.
BVC - Bar Vocational Course. This is the route you will take at post-graduate level if you wish to become a barrister. I can't comment on it in too much depth since I'm not on that course, but judging from my BVC mates, you do a heck of a lot of advocacy and there are time pressures. So it's very practical in nature, which might be difficult to adjust to after undergrad work.