You are absolutely correct and most times what makes some investors to be overly aggressive is because of the market Dip some people use this period to ruin there investment unknowingly because the moment you accumulate or buy more than you are suppose to buy in this period you will definitely see the consequences within a short period of time. Ordinarily Dip is suppose to be an opportunity to increase or double one's portfolio but i don't know why some investors abuse it and sometimes it is been done out of greed or ignorant of the fact of what the outcome will look like.
In addition, buying too aggressively can cause sudden losses,
for example if you buy when the price may have dropped and you think it has entered the support point but it turns out there is still a further decline if you buy it too aggressively at the beginning then in the next decline we do not have enough funds to buy more at the lower price so it would be better to buy periodically such as using DCA it will make us more controlled in making long-term investments and we can see the benefits in the existing DCA calculator if the target we have achieved is met.
In the example you gave, you seem like a trader. Being too aggressive in investing can lead to losing your portfolio or you may be forced to sell. However, as you said, there is a possibility of losing in investing. No matter how aggressive you are at any given moment in the market, if you are a long-term investor, I don't see much of a chance of losing. However, you could say that being too aggressive can force you to sell your investment and potentially lose all your money. Even being aggressive at the wrong time can cause you to miss the dips that would have given you the opportunity to buy more bitcoin at a lower price.
If you have excess cash flow and enough money to be aggressive in investing, which is not absolutely necessary for you, then you can be aggressive in investing at any given moment, if you are a long-term investor, I don't see any reason to lose. Because I expect the price difference in 10-12 years from now to be much greater than today's price. However, being aggressive at all times in the market may not be a smart decision. It would be better for you to invest consistently in DCA and build the funds strongly. You can even have a separate fund to be aggressive in investing which you can use during dips to take advantage of the opportunity to buy Bitcoin at a low price and increase the amount of investment profit and push yourself to meet the goal.