The world cannot be perfect, because the world is formed, by all people, who is imperfect.
What you can do is, be a little more hardworking than others, be a little more ambitious than others, be the person that tried to make the world a better place.
Remember that, you too, is imperfect in a way.
When dealing with a specific imperfection or problem, look at it positively, think, to figure out what is the best effort that we can do, to solve that particular issue. Then, do it!
Nothing can be said further, that a person who do something, is much better off compared to the one who complaint and keep waiting for the things to be right and do nothing.
What you do in your daily life makes who you are. You are the one who decide what to do in your days therefore you decide who you will become in the long run.
So, try to do things, a little better than before!
You will understand that, the action that you take, no matter how big or how small, make all the differences!