Don't feel sick about it. I just celebrated my 36th annual 29th birthday.
The bad news is--you ARE catching up to 45. And once you get there---a LOT sooner than you'd like you'll be at 50---then 55---then..... The older you get the faster it seems like you are getting older---and older---and older. How long does it seem to you since you were 25? Now 4 years, huh? See what I mean?
You are the same number of years apart. The percentage of years between you shrinks
No need to feel sick. Go and enjoy your self and stop worrying about your age.
What are you worried about?
just wait till next year!