Hi, i will give you my example. When i moved to usa, i didnt know a word of English, i started fron zero. I took classes on college, work with American people, i learned the good and bad english, ican say that i dominate the basics in3 years, but i still learning everyday! So it takes time, but is not imposible. Now, i can help you with Spanish. Im from Peru, so im Fluent.