I relate to alot of what you described...

I sometimes get those kind of thoughts but i guess i have adapted to focusing on only on what is going on around me. Seeing every action as a performance and every situation the highlight of the plot. While it is important to be concerned with the condition of things you can't let it somehow consume you. You are only one human, you cannot hold the weight of the world on your shoulders just yet. You can accept the world as it is and make effort try to transform what is around you. Project how you want to live to others, start slow and progressively you will begin to live the life you see for yourself. Hope that helps something.