Heh. You have plenty of time.  I'm in my 50's and while I've been programming since high school,  I'm still learning. It's shifted a little bit from trying to learn the cool new thing because it's cool, to trying to learn the cool new thing because it's cool and so my brain doesn't shrivel up and make it hard to learn. 

But anyone in their 30's can get to the point of making money coding unless they're just bad at it, or don't make the effort.  

 Thank you for the encouragement. I respect 50 year olds, they know shit!