1. Thinking that getting rich is easy.
2. Not doing your own research.
3. Trusting random dudes from Youtube/Twitter/Telegram Group.
By the way, cryptocurrency isn't all about exchanges/trading.
Yeah its true. Also, you should be patient and persevere on what you are doing. You should be dedicated to be part of the cryptocurrency world. You should work hard on learning new things about those cryptos. Analyze all the possibilities that might come to your life.