$Invesco QQQ Trust(QQQ.US) perfectly targeted me. I held the position for three hours without any movement, missed several chances to break even and didn't sell. Since I've already held it this long, missing out on a rally feels worse than losing money. I couldn't hold on and ended up cutting my losses. I still sold too early, still wasn't firm enough. It was just that little bit, just a tiny bit. Every time I give up, it takes off right after.