I've just finished up my last year (4 years spent in total). Gave up on the idea of a student life by the end of the first year after I only scraped by with a 2.2 and needed to step up my game. I didn't find any of the work particularly difficult, I think I was just slow to adjust to the load. Second, third and fourth year were unpleasant, especially once that dreaded dissertation (or final year project for me) came around. Poured my life into it.