I've been in your place for three months now. I don't think it gets better any time soon...
As for feeling old, getting the occasional piece of junk mail from AARP wasn't so bad, as I know I'm nowhere near old enough to join so I just tossed it. However, when I got a coupon for a free pair of bifocal contact lenses as a birthday gift (from my contact lens manufacturer), I felt REALLY old!!