I have been in the navy for 7 years now and I am pretty much an expert soldier. Is there anything you would like to know? 
Do you enjoy it?
Yes it has its up and downs, I love to work on nuclear deterrence for my country, its where we use of submarine-launched ballistic missiles. But most of them are just tests. 
I understand it takes a lot of bravery to join
It does, I worked mostly on surface ships, but my navy buddies got to work on amphibious ships like submarines, and some were even on seaborne aviation, and of course other fields that are classified.