It's always a dream of me to write a book

I've written stories for as long as I can remember but I'm a very flittly person; I can't stick to one thing for more than five minutes. I've got half written stories everywhere, a folder of story ideas waiting to be written and probably a million more in my head. My problem is that I lack the discipline to spend the time with them that they need. I haven't given up yet though, I keep going back to them and they will be finished.