If you speak English what other language do you want to learn and why, may I ask.
English is a widely spoken language in the world.
But chinese is used too much in language like spanish.
I want to learn chinese. I want to know about Chinese culture and history.
Chinese is good to learn for business, you can even get good salary job with it. It is hard to learn language like chinese, especially if you start from scratch. I recommend official schools, and it will take probably years until you master it.