扩大差价合约头寸规模：你们如何管理？

It's definitely a common hurdle. I found that gradually increasing my position size, rather than making big jumps, helped immensely with the psychological aspect. Perhaps try increasing by a very small, fixed percentage after a certain number of profitable trades.

That's a great question and something I've wrestled with myself. I found that incrementally increasing my position size, but always staying within a risk percentage I was comfortable with, helped a lot. It made the psychological leap feel less like a jump and more like a series of small steps.

Incrementally increasing position size, perhaps by 10-20% at a time, tends to be more sustainable for managing the psychological aspect. It allows you to adapt to the larger P&L swings without feeling overwhelmed. Have you considered what your target percentage risk per trade will be as you scale up?