Don't waste time! I did, and joined BRNC at the age of 25. By the time I realised I wasn't, I was, too old if you get my drift. I tried to transfer to WAFU (aircrew) but they wouldn't let me
So I navigated warships for 6 years (no I've never been anywhere near that feckin rock off Australia...) and decided to bin it because a Warfare Officer's career progression is dull and involves pandering to ex-squadron COs who think they can navigate ships when they're awarded their command for not singing the party line out of tune
...sorry Merlinboy.
Hence nearly finished civvy ATPL and looking forward to the back of the dole queue
(Ra,you cynical twot!)
Anyways, go for it, your action plan will prepare you for the AIB which is straight forward enough. Military life definately a tick in the box for a young chap or chapess and all the WAFUs I knew and who still fly in the Andrew are a cracking bunch (don't let them on the bridge tho, it'll take them hrs to find their way back to their bunks...)