I'm probably the last person you want to answer, but I'll have a go anyway! lol
Nobody can make your decision for you mate! You may find an ex-officer tell you how good a certain job is on here and even though his opinion is credible - It doesn't mean that you'll like that particular job!
Order the information pack online, The Navy then arrange for you to attend a presentation - at the presentation, all the jobs are explained in detail.