My preparation wasn't detailed enough. I didn't put enough emphasis on a potential trend day, even though we had a significant fundamental catalyst: TSLA missed on delivery numbers for Q4. But I adapted quick and prepared for my first Trend PB trade. I did okay on my entry, but I puked the exit. I need to learn how to hold for a bigger move. That will be the main focus for next time, not selling unless there's a good reason2sell.