secondly, when you are accumulating bitcoin within that time period, don't pay attention to market volatility, just save and hold it for the time period you want.
Once you are mature enough and understand how Bitcoin works, then you can increase your investment to a bigger one.
It would be reasonable to make purchases of Bitcoin when its price is at minimum values, and not when the price exceeded ATH and, accordingly, it should have been done in December 2022. If you buy BTC at the current price, then there is a high risk that you buy at high, after which the price may decrease significantly.
What's more, we have just passed the halving phase where many miners are taking advantage of their mining, what's more, there is some negative news that could affect the price of Bitcoin even further down. This is actually a good opportunity to accumulate bitcoins. just buy whatever the price is and hold on for a few more years.