Reddit mentions of The Experience of Insight: A Simple and Direct Guide to Buddhist Meditation (Shambhala Dragon Editions)

You might find meditation worthwhile. There are many forms of meditation, my favorite is Vipassana or "awareness" meditation. You pick something as your focus, often it's your breath, but it can be other things like walking, archery, even dancing or art. The gist is, whatever you are doing, DO THAT. As stray thoughts come into your mind, notice them, and let them go.

Say you're focusing on walking, feeling each lift-move-place. A random thought comes in, you notice it and label it "Thinking", and let it go. You might find yourself judging yourself for not being able to focus, so just notice that: "Judging," and let it go. By cultivating mindfulness and a level of detachment from stray thoughts and emotions, you gain that time to process new information more skillfully, and things don't seem as intense.

It's not forcing thoughts out of your head, nor clinging to them. It's just letting them go.

The Experience of Insight is a great book on meditation and Buddhist insights.

Way of the Peaceful Warrior is also worth a read, and Peaceful Warrior is actually a good movie too.

Here is a scene from Peaceful Warrior.