Psalm 119:99 I have more understanding than all my teachers, For Your testimonies are my meditation.
It is not going to be too often that we are able to say that we have more understanding than our teachers in a subject but there may well be a time when you can.
This is not to say that you should put your teacher down because you think you know best! They are the teachers and they have studied to get to that position. If you study harder than they did then you may well get to that stage. So study!
God wants us to study His Word so that we can know what actually happened and what He has promised. Don’t just believe what others say, find out the truth for yourself.