I lost money before, and I was in a bad mood every day. I al...

I lost money before, and I was in a bad mood every day. I always wanted to turn on my phone and watch it pick up, so I couldn't concentrate on my work every day. Until I met one of my seniors, he said, “You can only change your mood if you learn to stop loss, and every time you search for a range where you can accept losses, you can face losses with ease.”