$BTC

I remember in 2017 when I was a beginner and I had my first experience in trading, I remember at that time that Bitcoin was around $15,000, and on the same day it fell more than 30% and all currencies collapsed with it, and out of fear I sold all my USDT and lost a lot, and after a few days it started to rise again, but it was too late.

Lesson:

Don't let your emotions control you, you have to learn and be patient, it is the key to every success.