Of course, we must exercise caution when making investments, as our carelessness will be repaid when the value of our assets declines. We must also monitor our assets at all times, even if we do not buy a single coin, because when the value of the coin rises, we must feel sorry because the coin we do not hold and the profit simply vanishes.
We have to support every decisions that we will make thru our own analysis because if not, we might fall into a trap and loses our capital because of a mistake. If you really want to become profitable, having a perfect timing is a must and you can only have this if you are already knowledgeable enough about your investments. Timing is the key, it may take time to practice this but you should push to learn this.