Today I lost 400 points shorting BTC

Last month and this month I lost 3 trades

In total, I lost 400+400+100=900 points

In about 40 days, BTC has nearly gained 20,000-30,000 points, I have a total loss of 900 points, yet some people say my skills are lacking, it's too difficult, today I lost, and I'm not in a good mood. Although overall, I am 90% profitable, today many newcomers came to my live stream for the first time, and I feel sorry for them. I feel very upset, so I'm going to take a break today.