That's what attracted me to GTD was the idea that I could free my mind from the anxiety of everything I HAD to do so that I had time and creative energy to do the things I WANT to do. I am just starting out so I can't say for sure if this is the path I am on. I can say that my anxiety level is down.
I also like the idea that I can keep the sometime-maybes on track, by doing little errands that will lead up to doing the actual project; I buy all the stuff I need, do the research, prepare my work area, and then when a block of time opens up, wham! I'm ready to do this project that might never have happended. Fingers crossed.