Don't try to be a hero, especially with sizing

Thought I'd drop in here since I'm new to the forum. Been trading equities and options for a good while, mostly discretionary with some systematic overlays. My biggest lesson, one I keep relearning despite myself, is the absolute folly of trying to make back a loss too quickly by upping the size. It's not just that you're more likely to lose more, it's that it completely messes with your psychology. Took a bad hit on $TSLA calls last year when I doubled down after a quick drawdown. My original analysis was solid, but the moment I tried to force a recovery with a much larger position, my edge evaporated. You start seeing what you want to see, not what the market is actually doing. Ended up taking a much bigger hit than I should have, all because I couldn't just walk away and re-evaluate with a clear head and normal sizing. Humbling, expensive lesson. Stick to your plan, and never let a loss dictate your next trade's size.