Read your first post.
You could have dumped your ETF AH yesterday. GLD was up almost 3% AH. So 3x and you're there. I don't know what the liquidity is like, but yeah, you got caught in a reversal that occurred after hours.
Get over it if you can or find another line of work.
It was not at a price in AH that I would have wanted to sell it. If you look at it (Nugt), you'll see a large gain since the end of December. Today alone took out about half that. I'm hoping the uptrend will continue from December.
Luckily, I don't need the money for living expenses, so I can afford to wait for it. And I don't have anything else I could put it in that I also wouldn't consider gambling.