One of the biggest complaints I hear from would be or struggling writers is that they don't have the time. That their families or work or whatever stopped them doing anything.
I've heard people with children wailing that they can't even find peace in the loo because someone will be banging on the door.
Here's a story about the novelist William Faulkner that may give you an idea. He used to walk into the room where he wrote and on the way in, take off the door knob and put it in his pocket.