看一下这篇文章有没有语法上的错误

看一下这篇文章有没有语法上的错误
I have a dream that I can be an astronaut.
Although our earth is very big,but there are sixty-five hundred millions people in the world.One day the resource will use up.It’s terrible!I want to be an astronaut because I want to find a new star for people to start their new life.In spite of having difficulties,I still believe my dream will come true.For example,I must have strong and healthy body and analytical ability.Maybe you will say I am a girl,but I will work hard for my dream.

I have a dream that (one day) I can be an astronaut.
Although our earth is very big(large),but there are sixty-five hundred millions people in the world.One day the resource will (be used up).It’s terrible!I want to be an astronaut because I want to find a new star for people to start their new life.In spite of having difficulties,I still believe my dream will come true.For example,I must have (a)strong and healthy body and analytical ability.(Despite) I am a girl,but I will work hard for my dream.

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