watchtower philosophy is basically not to trust yourself, often quoting i think Jeremiah, where it says something like humans don't even know how to walk straight. have to depend on Jehovah which is not specific enough to be of any use. does this mean, the bible, the insights you gain during prayer or meditation or a specific interpretation of god's thoughts as offered by a group of human interpreters.
Shakespeare says you have to trust your own insight, judgement, etc. based on your own gut (experience) and brain (knowledge of facts)
you cannot trust yourself if you are ignorant. you must educate yourself on everything which affects your life, which is everything.
read, research, dedicate a percentage of your TV hours to educational programs, only listen to talk shows where both sides are represented equally or alternate between those of different opinions so you can evaluate differing viewpoints. write your own thoughts down.
think.