anxiety about a guidebook

Stop signs! The are everywhere today. I can't go anywhere and I'm stuck in one place. I wonder why it is so difficult to translate idea to reality? I come up with a pretty good idea in my head and then...someone said that the most difficult thing is to get something from your head to your hand..thought to action so to speak. And I agree, but why, lack of talent, lack of synapses in your brain or plain negativity maybe. I think I will bake a cake or a bread instead and get my self doing something that is not difficult to transfer from head to hand to mouth.