Trading with an amount that you’re actually comfortable losing is like trading with a demo account

So recently I posted some results I got on a demo account, and someone said that it will be different when I will trade with my own money. And they are right, but not FULLY in my opinion. One rule in trading many of us don’t follow is that we should always trade with an amount we are actually comfortable to lose. If you enter a trade and you feel a bit of anxiety, then you need to lower your money up to a point when you will be comfortable entering a trade, and it’s going to feel just like trading on a demo account.