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.
Celebrate the journey of how far you’ve come! It is easy to overlook our achievements and accomplishments. A great idea is to list milestones or things you’re proud of, to look back on and realise just how much progress you’ve made!