Not all lose, just 99%
I know day trading is really risky, am not a day trader because I know is kind of risky, but to be honest I don't agree with you saying 99% of day trader's always lose their money, you losing money or maybe you knowing people losing money those not mean you have to generalize it, as I said I know some people that are day trader and they are making money from it, am not saying they are not losing money, but at the end jf they calculate their profits and lose, their profits is always far more than the amount they lose, which I think is normal. If you are a day trader and you are losing money frequently then I will advise you to stop, you can definitely change your pattern, but to be honest with you, their are still lot's of day trader's making money, you might just don't know them.
OP meant to say was day trading isn't profitable in the long run, you may be earning today with your day trading skills but once the cycle of market change then that's the time you will start to question your ability in day trading. That's why OP said that 99% of his trade aren't successful(getting profit). There are different types of trading strategy and you use the best strategy that would be able to give you more profit than your previous trading strategy.