I would start with either getting a book or watching tutorials. Don't just copy everything though. Learning how to program takes time. Much like becoming a pro soccer player takes a lot of training. From there on you should just try programming anything you come up with. Start with an application that shows for example a figure on the screen. In the next application implement some movement mechanics perhaps? And so on.
The only warning I'd want to give you is to not start off with something huge. If you do so, you'll be fed up with it in no time. You really gotta take it slow.
I'd be happy to answer any of your questions, just send me a PM.
Good luck!