The principles we should keep in mind before trading as highlighted by you in this post are quite amazing. Proper analysis, diversification, risk management, keeping yourself updated and building your own strategy are good principle that will help any trader to be very successful in his/her crypto journey. The 3 concepts that should be taken into considerations by all traders as listed by you include portfolio management, balance emotion and research and analysis. When trading, it is important we don't join it with emotion so as not to get heart attack. I wish you success in this entry my friend.