You are but one person on a planet of 7 billion people.
In this sense we are all insignificant.
The Planet you live on is but one planet is a Solar System.
The Solar System is but one Solar System in a Galaxy of countless Solar Systems.
And the Galaxy is but one of countless Galaxies in an incomprehensibly vast living universe.
In this sense we are all VERY insignificant.
Think of all the grains of sand on a beach. How significant is one single grain of sand? Not very. In the grand scheme of things our whole Planet is even less than that in comparison to the Universe.
Yet despite all of this our problems, as insignificant as they are in the grand scheme of things, never the less appear significant to us.
That’s cool, we all have shit to deal with.
Just keep it in perspective.