Not with remainers controlling the negotiations, we haven't. That's not the leave voters fault. We voted to leave the undemocratic cesspit that is the European Union, if that means walking away with a no deal, so be it. That will hurt the EU just as badly as it will hurt ourselves.
We voted out, we have to go with what the majority have asked for. Otherwise you're opening up a huge can of worms. For example, if Labour get in at the next election, does that give us Conservative voters the right to demand a re-run as nobody realised just how much of a scum bag Jeremy Corbyn is? You might disagree with that, but I disagree with trying to run the in/out referendum again.
As a side note, 27 out of 30 polls are showing that the leave vote would actually increase if we had to do it all over again.