No, not yet. I don't have a real world business so I can't do it. Even if I could, the transaction would have to be kept secret, because accepting bitcoin as a means of payment in a real business is strictly prohibited by the government.

I'm not sure what kind of answer you're expecting. But in general, you won't lose anything if you sell your bitcoin as soon as possible regardless of market conditions. If you choose to hold, you'll either make a profit or lose a little value from its price volatility.