In order to control your mind, you have to understand experientially how it functions!
Begin by verifying for yourself, that you can categorize each of your thoughts into one of five types:
1. Correct – these are verifiable by observation, inference or authentication
2. Incorrect – these are caused by misperception
3. Imagined – these have no basis in reality
4. Neutral – these are simply observations, or perceptions without judgment [your conscious mind is always on, but when its not interpreting, imagining or remembering, it idles like an engine in neutral: the state of mindfulness and meditation]
5. Remembered – these are impressions that remain of the other four.