Don't be afraid to change your mind. It happens a lot. This is life. We only pretend to have answers. But there are always questions and opportunities to learn. Those things teach us and widen our experience of life itself.
Those who cling to their faulty beliefs far after they've been given clues to move on are the foolish ones. Consistent, perhaps. But, they never grow in wisdom. They spend life defending instead of exploring. You don't want that.