Well, it's a basic advise but it's on of the most important. And i think it need to be seen by new people and be reminded for those who are long time in crypto world. Because you can easily forget about basics at some point.
Emotions in trading or investing should never come in between beacuse then your mind and heart will never be insync and at the end whatever results happened you will never be happy. Because if you invest and market falls then you will have all the reasons to blame and if other way around and you did not invest and market went up still you will blame as your heart said to invest buy mind was not allowing you to take that decision and you will remain unhappy in either ways.