Hi rowie, yeah, I'm 30 in june and I was thinking the same thing about my Birthday actually!
I thought your 30th was supposed to be a big event, with family and friends etc. But I have a very small family (it's really just me, my mum and her partner, no siblings or cousins) and a small circle of just a few friends. So I doubt that I'll be having a massive party or anything like that!
We should have an online party for you on here! Ha.
I think you're made to feel a bit sad if you don't go out and get hammered on your 30th, but that'd be the last thing I'd want to do on my Birthday.
Anyway, I hope you have a good day, whatever you decide to do!