The best advice I ever had at medical school – spend as much time as you can just being around patients on the wards. Books have lots of wonderful information in them, but they’re a very ineffective way of learning. as the material is abstract with no experiential hooks for your brain to fish them out of your memory. However the first patient that you see with rheumatoid arthritis is going to show you at least five things about the condition that you didn’t know before, and you won’t have to revise them ever again because you were there.
Also swimming is good for you health, do that too.