I´ve heard many times from people, that they think they shouldn´t do a certain thing because other people are doing it, or something in the same direction already.
Let´s take the following example:
Maybe someone wants to be a writer.
This person probably thinks „I shouldn´t be a writer, because there are so many other people being writers, why should the world need me or even care“.
My answer to that is the same almost every time.
You have a unique physical appearance, your personality is unique and maybe there are people who need to experience, learn or read (to use our example again), what you have to say through your unique expression.
What I don´t mean, is that you should think that you are special that´s just food and nourishment for the ego.
Authentically express what wants to come through you in each and every moment.
Let your creativity flow freely, you do you, be yourself.