>>657
Exactly what
>>659 said. Were you born miracurously with the ability to speak your native language? NO! You LEARNED it, you had no notion whatsoever of a language.
The only think you can use now (without using your native language) is the fact that you know what things are, you know a car is a car, you know red is red... so you don't have to re-learn what is what, but you should still learn a language, using the language, not another one, your brain will still learn it and you will be closer to native-like since your brain will not try to translate a word first in your native language, it will come to you naturaly. If that makes sense.