Perhaps if you are using DCA strategy I see no reason why we should focus on buying dip, I no that accumulating during dip is also one of the best time but with DCA strategy we don't need to wait for a dip to come before we could start investing on Bitcoin.

However accumulating on dip is for mostly those that lump sum because they want to buy everything at a stretch so they consistently observed and watched the market to see if there is any dip for them to lump sum.

So I think it will be more better focusing on DCA strategy because if you plan on accumulating Bitcoin waiting for dip, you will have to wait tirelessly on the market and the possibility of the price dipping is not certain however making you to miss out the buying opportunities.

However your strategy of buying and selling if the price peak is a very wrong strategy because is more like a gambling strategy because the chances of making profits is very minute, so perhaps instead of chasing the Bitcoin price that could caused you emotional trauma or panicking seeing your investment going on a wrong direction perhaps you could save yourself those stress by only focusing on investing and holding.