My Spanish Sucks Now

I go back to Chile in about 13 days. Yes, I started counting down weeks ago. There's just one little thing that worries me. My Spanish has been sucking something fierce. I was thinking yesterday, that I probably haven't spoken so little Spanish in a two month period since I started learning it, or at least since I've become more fluent. The only time I've been speaking-speaking is when I talk on Skype with L. He doesn't correct me much when I speak, but I notice the little errors as soon as they're out of my mouth. Then, in emails he sends me back the corrections.

It's not such a big deal, except that I am going to get SCREWED OVER by the taxi drivers. Especially because a typical response to "Take me to X place" is "Como? No te entiendo." (What? I don't understand you. To which I most always reply "Of course you understand me. I'm speaking to you in Spanish. Let me out!"

I just know that when I get to the airport I might have to haggle for a ride. I've had then down to 9,000 pesos before, which I think is good, but with this gringa accent thing I have going on now it's going to be 15,000.