How to control thoughts and know the reality behind thoughts to shaping life in a much better way?

“To control” is a 3rd party view. An iintelligent mind is in search of absolute truth beyond the immediate reality. Immediate reality is perception given by the senses. Get beyond the senses.

Then the mind starts taking and processing needed info. Other info is ignored. That moves to realisation. Realised mind is better placed to shape future. This seems like control.