I have a question about turning losing tradings into breakeven trades

...Lets say I want to go long and instead  of using a stop loss I use a hedge position (in this case a short position). If price hits my hedge position then my negative PNL would be the size between the long and short position.

Would not be possible with Just another long and short position (DCA) to achieve that long and short position have the same entry price? so the negative PNL would be O?