However, I know everyone can not have same trading plan so different people sees different thing in the market but who is right and wrong is always determine by the price action.
That's it. Not everyone will have the same plan as the other profitable traders. And not all of us are going to be traders and those who are trying to be one, they'll see it for themselves if it's for them and profitable. But if they have realized that trading is not for them, they can opt to holding. Every reaction that the market falls, they can start to DCA at any amount that they can afford to. Swing isn't bad if you are profitable but every time you profit, secure some for additional funds in holding.