First year of Uni: What I'd do differently

It's that time of year where 18 year olds across the UK have just experienced that sickening feeling of being left by their parents in a dank uni room, with nothing but a few fairy lights to make it look homely. I'm nearly finishing the first term of second year, and I thought I'd look back on my first year, and share a few bits of advice of what I would and wouldn't do if I started all over again!