How is it possible that you do not know just how much you matter in this world. If you didn't, you would not exist. Everyone matters. There is a reason why you are here. You have a purpose. It does not have to be anything grandiose. You do not have to be famous or wealthy. You do not have to win awards, heal the sick, or rule the world.
Your purpose can be as simple as being a loving parent or spreading kindness to others. It is the small simple acts that can cause a ripple effect strong enough to change the world.
The way you think, the things you do, the way you treat others, and the way you treat yourself, matters. You are so incredibly important and special that you have been given the gift of life. You have been given opportunities to experience love. You have the choice to recognize the fact that you matter, or to feel unimportant. Yes, you have the power to take your life down either of those roads. When given the choice, why wouldn't you choose to see how much you matter?