I had my first LD with the WBTB method. Why did I use this method? Because it was the first one I found on the internet I guess. It took me several attempts to actually get up two hours earlier instead of immediately resetting the alarm clock and going back to sleep 
But once I did it, I LD’d from the first try! Too bad this method is hard to integrate in everyday life. It’s not comfortable, but it is a good way to start imho.