If you don’t have a backtested trading system to have confidence in, then it doesn’t matter what you do, trade with trend or counter trend, you will consistently or finally go through most part or all of your trading capital.
How do you know
You can try if you want to find out for yourself, using real money.
That's not an answer. People have made millions dollar cost averaging without a back test they used logic. So what's your proof.
Still Without proof or justificationI would agree when it comes to investing. Trading, no.
Still Without proof or justification
Statistically around 80% of retail traders consistently lose money, why do you think that is?
They suck at trading. You still haven't justified your assertion that you need a back tested strategy.