Living and viewing life positively often makes us even away from the real reality of life. We are afraid to know the bitter facts of life because we want to be happy and more productive.
In fact, by knowing the worst reality in life that even we do not want to hear it, even help in determining the steps and solutions to become a better person.
Life is sometimes unjust and will never be fair. It's good we learn to take wisdom not only from things that seem good to us. People who want to learn from the downturn that has a lot of experience and more resilient. The world will continue to spin with or without you. You can not force to change the world or others around you. If you want things to be better, you do not have to change everything in accordance with what you think is ideal.
The thing you should do is to let things you can not change and focus on yourself. Because all you can control in this world is your own thoughts and actions, maximize your life for introspection and complete the plan you've set up.