There is a truth that cannot be denied, and that is this: you are subject to whatever rules you.  Here is a short excerpt from the book A Glimpse of the Kingdom:
“If we are not willing to subdue our bodily passions, if we are ruled by our own desires or emotions, if we constantly yield to the temptation of satisfying self, we will learn in due time that our eternal citizenship will be with the kingdom that we habitually yield to.”
What is it that you are habitually yielding to?  What thoughts occupy your mind?  What consumes your time?  The answers to these questions will help you discover what is ruling you.