One thing that helps me is to meditate, which sounds cliche. But it helps to remove the addiction to information input in the brain. If you, like me, are addicted to info, then you might not do so well with just straight up sitting meditation.
What works for me is a walking, running, or playing music type of meditation where I can get into a flow-like state and let the thoughts float by my consciousness instead of attaching to them.
Hope that helps!