Can you please improve my text?

Hi, my name is Tony. I am a French citizen living in Germany and I would like to improve my English and write some texts. I am looking for a job aboard and I want to be preapare for a interview. That is why I want to write texts about my studies, work experiences, interests and so on.
If fou could help me and correct my text I will be very happy. I also can help you if you have some questions about French language (I am a French teacher!). Thank you!!!

After my study in law in France I was looking for new challenges and took an opportunity to move to Germany in order to fully learn a new language and develop new competences.
It was a great adventure and I found much more exciting experiences as expected. I worked as a freelance French teacher, translator and coach. I had the opportunity to build my own small business and collaborated with different companies and organisms.
I also decided to improve my competences in marketing, project management and sales and obtained a Masters´ degree in “Foreign Languages Applied to International Trade and Business”. As part of this study I did a six-month internship in a communication agency in Germany. Today my goal is to use the knowledge that I have gained during my studies and my professional work in a company.

If you want to correct my text I thank you very much!