Well you to know that you need to have the knowledge of the chart as someone who is investing, is not all about belief that the coin will constant go up, but at least an investor should know the right time to invest in any coin
The point is that you need to have knowledge about the chart and also Have a skeletal analysis of what your in investing on, at least the high and the retracement
Wait for the dip... buy and hold
If you wait for the dip you never find in your life because you will never know when the dip will comes.You have to buy when the price drops and you can't buy when the price increases, this is a wrong way to invest in Bitcoin because you may think that the price has dropped now and you bought it thinking it was a dip, but it turns out that when you buy thinking the price is low, after a while the price has dropped even more, then you will be disappointed.
So, no one can accurately say when the price will drop or when it is the deepest, so don't be too scared about the price falling or rising, invest a certain amount of money regularly every week or month, and this is the effective and correct decision to invest in Bitcoin, no matter how much the price rises or falls, DCA solves this problem, suppose - you bought when the price rose and then you bought when the price fell. If you keep collecting Bitcoin for a long time, after a time of 5-10 years, your asset will be bought at the average price. So instead of trying to catch deep red and entering at once, buying regularly step by step through DCA is a proven and effective strategy.
However, if one is an investor with long experience and can take risks, then buying extra during a major market decline can provide additional benefits.