How we are handling whipsaws In day trading Systems?

I know here we have lots of experienced and knowledgeable traders.So looking for some guidance to avoid whipsaws during day-trading…

how you are coping with that?..

Each day-trading system should be at least 60%-70% proof of that (100% ??) but in real, are we able to achieve that?

looking for your guidance and advice.

-Cheers
Snehashish