Life at sea depends on your division.
If your a Seaman your treated like sh1te and do every know crap job, toilet cleaner, scrubbing decks at 0400, painting, general crap. Believe me you get F8ck all action of any type and your a general dogs body.
If you in Comms, a Tel you do F*ck all and is indeed a hand number.
If your a Steward your a glorified waiter for the ponses that are the officers.
If your a mech, again another filthy job but much more handy that being a seaman.
The Naval Service is a crap career unless your one of the mavericks from Cobh that have nothing else.
My advice join the army or go to the UK or US if you can get a green card and join a proper army with proper chances of advancement !
If you go South to that kip you will regret it, it may have changed since I was there but Seamen are still treated like filth.