Please correct my answers(

Describe your strengths. What would you like to improve or develop in yourself?

I am a self motivated person and I am very responsible. I always do my best to get the job done efficiently and in a row. I want to improve my skills in foreign language. I like studying new things. In my opinion there is no limit to perfection, and you need him to strive for life

How would your friends describe you?

They describe me like a as an open-minded person with creative thinking and man who will always help. (and a man who will always help, this sentence sounds a little strange. Do you mean, and a person who will always help?) It makes sense what you said, but for your English to sound more native, "man" would be used more to describe gender rather than a being (human). 

Your favorite place to travel and why?
I like Lviv very much. It is an amazing city with very friendly people. I feel freedom in this town and understand that to be ukranian it's worth its weight in gold!

What do you want?

I want to have practical experience in economics and use my teoretical skils that I had during my study in University and my nature skills. I want to gain receive new knowledge that I can use in future jobs. In ideal variant It would be ideal to have a job in prestigio consulting company by the ending of my internship. I also want to working with proffesional people and to have new acquaintances and emotions

If you have any questions just ask!