A mentor/Rabbi should not control everything in your life. He is a guide. You should be able to think for yourself when necessary. You know ourself better than anyone.
The problem with that line of reasoning is that you are biased, and its nearly impossible to make an unbiased decision for yourself. Secondly, your reasonings may be influenced by non torah concepts.
There is no one correct path to G-d. Everyone should find their own unique path that will enable them to reach their highest potential.
AGREED. Which is why we have Chassidish, Litvish, MO, Mizrachi, etc….