Losing money in trading is a normal thing but how well are you managing your losses and how many wins do you have ? How many wins do you need to cover your loses?
No matter how professional you are, there is one thing you can’t avoid as a trader, which is loss. You can’t completely avoid that in trading, you will be able to reduce it, but it can’t be avoided. But if you are trading, always make sure you monitor your profits and losses. If your losses are becoming more frequent and they're more than your profits, then there is something wrong, which you need to check. Just stop trading at that time and do more research to know when you are getting things wrong.