At peace & happiness

One thing I am proud myself of is that I tried my best to do the things I wanted to do, be or have.
I will keep rowing though somtimes I feel I have almost drowned.
I am proud to be myself. I had valid questions about the world. Why the world is the way it is? Could it be a bit different? How should it be and what is my role in shaping it?
I had those questions, but now, I think the only way to live a better life is to ignore these qustions and try to live a better life yourself. If each person in the world focuses on his/her own intellectual, physical, financial and spiritual improvement the world will automatically be a better place. There's no need of any extra efforts. I now only focus on my own dreams and improvement, I know most of the people in the world have the capacity to take care of their own improvement if they are aware of their own humaness. It were humans who could invent a car, a plane, a light bulb, computers, mobile phone, space crafts etc. , so that's the only simple reason we should believe in ourselves.