Self Study English as a Second Language

"Learning English as a second language is like saving pennies. It takes a long time before you could accumulate enough to have anything of value. "
I read this from somewhere, and I could not agree more. Learning a language can be such a long and exhausting process. But in the Internet world today where people can reach out across the planet, you need to break the language barriers to allow efficient communication.
Researches found that children’s capacity to learn a language is at its peak between the age of 3-10. After that age, it becomes more and more difficult to learn language. So the earlier we begin the better chance we’ll get.
However, we should consider a language for what it is: a tool to communicate.