You can’t change the world, but you can change yourself. You, yourself is creating your own world, none else.
What you see, hear, smell, touch, taste and feel will make the world. The world you think is absolutely permanent.
But what you don’t is that the world we create with our sense born and die the same time and will not last. Only the memory that we create by ourself will last.
And that memory is always past. Past is an illusion, thoughts, so not real.
So remember that when you attach to either one of your senses9 that means you are attached to Sansara or else Mara or else the Klesas which will make you a tourist in this life and death cycle. ~ Dhamma Freedom