Which is the correct way? "Your english is good." or "Your English it's good" I know this is something really basic, but I have a huge confision between "is" and "it's"

Is really necessary learn english with a teacher or in an institute? I really don't think so, because all that I know, I've learned it from reading, watching movies, listening music.. and my english is not perfect, but is better than not knowing anything..

hello! I just want to practice my english with somebody..