How is your trade management? I reckon you lose mainly because you have none?
Timing is very hard, which means that very likely you're not buying the absolute bottom and selling the top. Usually you try to buy 'near' the bottom and sell near the top. Which means that initially you will have a loss on your position because timing is never perfect.
So, trade management... you buy near the low/bottom... do you sell too quickly at a loss when the market dips further? And when you do, do you at least let your profits run?
Having 90% loss ratio is pretty bad, but when your gains are >10x you losses per trade (your target settings) you would still make money... But again, 90% loss ratio is far from enviable.
Statistically, to get a 90% loss ratio, would mean you are cutting your losses too quickly.... because on average with a blind push of the buy or sell button you would still have 50/50 win/loss rate.
And, maybe don't trade too much. Only when you have a clear idea. If that fails as well... yeah, maybe not for you eh?