my question is about stocks not crypto
Partly it will going to happen with day trading, you'll end up losing if you didn't have a strong drive on your strategies. All those mentioned ways is always potential for all who want to succeed in trading. But it's unfortunate for someone who couldn't establish a good market, once failure is likely to occur.
As long as we can be careful in any trading type, I guess that we can have a chance to make a profit. And related to his failed, I think he can fix his failed, and even he can recover what he loses. But that will depend on how big his efforts to try to recover and learn to fix the mistake he made before.
But I do not suggest to do day trading for him if he doesn't know deeper in the trading. Day trading will need more skills to search the potential coins or stock to trade, and that will also need time to get the right stock or coin.