27 years in the RN. Been out three yers now (that's gone quickly). Yes It still is my "my life" in a way - if only for the reason that I've done longer inside than outside (few years more until this isn't the case). One itch that won't go away is the need to right it all down, kind of put it all away for once. So this year have finally started putting pen to paper - not with the intention of it being read by anyone, just to get 27 years of shit dits out my system.
Be careful, I did less years than you, but felt the same, writing it down is one thing, don't fall into the trap of boring the hat off people by becoming an "Uncle Albert" its easily done, I was reigned in by family, before it got too bloody tedious. keep the photos, bits of kit, and souvenirs for the grand kids. I have both my fathers and grandfathers from WW1 & WW2. These threads are a good place for Memory jogs, where applicable.