That's extremely well said. I've experienced Tesla going from 400+ without dropping to 100+, and my takeaway is:

1. Because my principal capital is relatively large, I don't need leverage to amplify returns. When heavily invested, making 30% or 50% yields a very substantial absolute gain.

2. I use a half-half investment method: half is held long-term, and half is for trading, ensuring that even if the price halves, I can average down without panicking.

3. If you could perfectly predict the turning points of rises and falls, I've done that too, but it's impossible to be right every time. If you try to avoid all the dips, you'll likely miss the rallies too.

4. Don't be trigger-happy, don't be trigger-happy, don't be trigger-happy. To prevent myself from acting on impulse, I've set up automatic sell orders. I absolutely will not sell until it reaches my calculated target price.

5. Actually, the biggest bear market I've experienced only lasted three or four years. I was younger then and managed to tough it out.

6. Don't keep switching. You like AMD, but did you hold it from the 70s to 350? If a company can deliver such returns, what's the point of buying others? The prerequisite is that you truly understand it. Including Tesla, I think it can go to at least 500, so I'm heavily invested in it. Isn't it good to do something certain? Only when you understand it can you be fearless.