Have an incredibly active social life and put it above readings. I've been doing this since first year, and when people ask me how I manage my workload and get good marks, I tell them that's how. No one ever believes me, and so they continue stressing themselves silly by reading more than they have to, without any kind of social outlet.
I forget who it was on these forums that said it, but I found the following observation correct: law is easy. You just need to read the relevant key principles and know where they come from, and be able to apply them. Reading full cases is a complete waste of time outside of a research essay, and this goes double in practice.
Love life, and don't forget to live - most people only get to do the uni thing once!