Fear : If you want to go far in profit making in your business don't trade with fear because fear has led many traders to zero level in profit making. Try to avoid fear when trading with bitcoin because those that trade with fear hard them to achieve anything good from their trade.
At certain points in your trading, you should have the fear though because fearless trading without understanding the risks can be sort of gambling where you are just being overconfident with the decisions you made and ready to lose money but not sell some assets for a minor loss.
Dump: Always carry out your personal research to know if truly the price will dump more than that before purchasing that particular coins that will help you to achieve something good in your trade.
It is the most challenging thing to do actually and I have done all kinds of analysis and research but still some ICOs were able to fool me until I completely stopped investing in ICOs.
Fake information: there are fake information all over the social media which can lead anyone to trade with wrong people in the market. Try to avoid any fake information for you to go far in your trade .
That is a very good point actually because a lot of FUD is spread all over the internet and similarly there is hype and FOMO created at times, avoid them all and at any cost, I agree.
Bad project: As a trader who want to become a professional in the future must avoid bad project that look like original project that can reduce any trader at anytime in the market.
I would say avoid taking the risk and don't invest in any ICO and rather wait for the exchange listing at the very least and once the coin has a decent market cap you may invest some.