I think speaking English is very useful. Can you tell me the advantages of English ?

I have been studying English for over 7 years, and I found out that it had brought me a lot of benefits. My mother told me English is an international language, so everyone should learn English in order to have an advantage to access to the world. For me it is not just simply a tool for communication, but it is also opens new doors to the vast ocean. It helps me get close to many sources of information through the books and material that I have read while learning. Most of the books for learning English are about science, nature, news from around the world or much more interesting content so they can attract readers. Therefore, I can gain a lot of useful knowledge as well as having fun time reading them besides the skills in English. I also make a lot of new friends from many countries, and they let me know about many different cultures, the diversity of custom and tradition. I speak to people from Europe, America and Africa, each of my friends has a lot of interesting things for me to explore, and we are all connected with each other by English. I have a dream that one day I can travel to many parts of the world, and there is no tool which is simple to get and useful to help me achieve that dream like English. I am totally confident that I can access to international friends as long as they also speak English, and the world is waiting for me to explore. English brings me a lot more benefits that I cannot name, and I am sure that I will regret if I do not study it properly.