USArmyMutt saidHow (did you/would you like to) celebrate on your 30th Birthday?
As an Army guy, you may like the black humor of my 30th birthday. I was a US Army Captain in West Berlin, Germany, when it was still a divided city. I was also married at that time, to an Army Lieutenant, and we lived in furnished officers quarters near the US Embassy.
Unlike you, I viewed turning 30 as a dreadful fate, and so my wife & I decided to conduct my birthday as a wake. We forewarned our friends, in case they might find the prospect in poor taste, perhaps having recently lost a loved one of their own, but none declined the invitation to our house party.
Our residence was done all in mourning, with a black wreath on the door, and black bunting all around the place, including over my Mozart sheet music album, open to my favorite piano sonata (No. 11 in A Major, K.331, on my piano I had shipped there from the States). We debated whether I should "lie in state" on the sofa as our guests entered, but we judged that too pretentious, and might suggest they were expected to say a prayer at my side, something I wouldn't even want at my real funeral.
Our guests brought sympathy cards instead of birthday ones, addressed to my wife, not to me, who greeted the "mourners" at the door, as I remained discreetly in a bedroom. They all sadly expressed their grief to her at the tragic loss of my youth.
I entered after everyone had arrived, and they all took turns offering me their deepest sympathies, telling me in exaggerated terms how good I looked under the circumstances, just as people say after viewing the corpse. Later we cut an all-black cake.
The whole party terribly macabre, and no doubt in bad taste, but we loved grim humor, perhaps encouraged by our mutual profession. If you can't make fun of death then you can't be defiant in the face of it. My birthdays at 40, 50, and 60 were also rather strange, stories for another time, but I still think my 30th "took the cake." LOL!
And congrats to you on yours!!!