It's not a solution, but it does help. When you learn to understand, feel what your mind is doing you can more easily adjust it. I would start with 3-4 minutes

It's not a solution, but it does help. When you learn to understand, feel what your mind is doing you can more easily adjust it. I would start with 3-4 minutes of boxed breathing back when I learned visualisation. Nothing would happen if my mind was doing the monkey thing, grasping at this, then at that, then at something else.