Your opinion does matter if it agrees with what God says, who He is, and His plan, or if it encourages or enhances another person's life; then your opinion matters A LOT! Your approval is not necessary, though.
They say that the best things in life come from doing things that scare you. If that's the case my life is about to freakin' explode! Be brave! Have faith! Go after everyday and find the lesson, enjoy the experience and LOVE life!