I totally support what has been said: just do it!

I was a professional translator when I wrote my first useful (albeit very simple) computer program, back in 1986 or 1987, at an age of about 32.It took me 5 or 6 years, between 1989 and 1996, to graduate with master of software engineering, thus completed when I was almost 41. I started Perl in about 2003, or so, at an age of about 48. I used it for a long time as a simple scripting language, and started only much more recently (about 2 years ago) to use it more as a full-fledged language for solving complex problems and I am still learning almost every week more advanced features of the Perl language such as coderefs, callbacks, closures, typeglobs, and so on. And I will turn 57 in less than two weeks from now.

So I certainly don't think there is an age-limit for starting such new things.