Here's my philosophy:
Turning 50 is better than the alternative.
I turned 59 on July 16.
My mom didn't like to turn 60 so she kept counting:
fifty-eight, fifty-nine, fifty-ten, fifty-eleven...
(She is fifty-twenty-three now)
Or you can make it like Peter Wingfield who celebrated the 25th anniversary of his 25th birthday last summer.
I'll turn 50 next spring but I keep forgetting how old I am and always have to make a quick calculation if someone asks me. Depending on how much sleep I get I usually feel between 23 and 40