Learning to Focus
Clearing your mind is something you can learn to do and the more you practice, the better you get. Start with just six minutes a day. Picture a clear field of view. Try an open window with an empty, blue sky. When a thought comes into mind or into view, acknowledge it and let it float past. Do this for two minutes when you wake up, in the middle of your day and at bedtime.
You are going to have distractions. You don't want to follow them wherever they lead. Acknowledge that you got distracted, let it pass out of your awareness and continue. The goal in the begining is to see how quickly you notice distractions. It is only two minutes, but you may have 30-100 distractions when you start.
Try it for a week and see how much better you get.