Please correct my mistakes. Thank you so much!!

There are many English speaking countries in the world, such as England, Australia, Singapore, etc... There are all interesting but I like USA best. USA make up most of the land in Earth western hemisphere and comprise the New World. The population is over 1 billion, with over 65% of them living in one of the three most populous countries. Various languages are spoken in the America, some are of European origin, others are spoken by indigenous peoples or are the mixture of various idimos like the diffirent create. Traditional USA cuisine uses ingredients such as: turkey, squash,... Washington D.C is the capital of USA. Havard University is one of the most university in the world and it also my dream school. Moreover, people in this countries are very kind and friendly. Whenever I have time, I want to travel to USA.