Brummie, there are many teachers that have studied the mind. The best of them recommend that we study our own mind. I recommend this to you because it is self evident that what they have we all have. There is no discrimination here. They all knew this.
The method is simple but you will confront a most formidable foe.....yourself. The method is simple. Observe without guilt or judgement . Watch your thoughts as they arise. That is your mind. It is difficult because we attatch to the thoughts and they motivate us to action. With practice one can see the process and one can know himself. Just watch don't judge.
Psychology strengthens the self, that is it enables a person to function among other selves. The truth of existence is much greater than that. There is only one self and it is at play everywhere. Therefore, spirituality is opposed to psychology in that it , spirituality , destroys that small ego-centric self . That is what happens when one sees clearly what the mind is doing. The mind is a tool but it has taken on a life of its own. This is the real meaning of the Tree of the knowledge of Good and Evil. Man is ill in that he is judging everywhere, everything. He has no sense of the single self that is operating everywhere because he is using the process described as alternatives 1& 2. This process carries with it a sense of separation from all other things. It is a feeling, a sense.
By observing your mind you will weaken the minds power to exist as a "self" and the sense of separatness will be replaced with the truth of no separatness.. One thing alive.