Fluently? Maybe. Have you gone through puberty yet? That's the end mark for perfect fluency. However, that's not to be said it can't be learned. My French teacher isn't "fluent" but if suddenly plopped in the middle of France, she'd be perfectly fine. Have you ever heard some one who learned English later in life? They have a few grammar mishaps, use funny sayings, and might switch words. But they are perfectly understandable and these mishaps can become much less common with practice to the point of only occasionally happening. Basically the mark of true fluency is being able to think in the other lanague at perfect speed with almost no mistakes. That is near impossible to occur in someone after puberty. However native speakers are often flawed and you can still come off as more than acceptable. Since your still at the puberty stage, try it now, who knows what will happen. Either way practice hard cause you can still speak it very well. Fluency has no hard definition.