I met someone who spoke bitterly against cryptotrading, he spoke of how he had a fortune in his trading account that disappeared completely in one night
How did his trading fortune disappear in one night? Was there a hack of his account or what actually happened?
"How many persons loose in a trade, and then go back to find out why they lost, and the mistakes they made?"
Of course, that's the hallmark of a good trader. You review your trading strategy when you lose so as to find out where the issue may be from, and not scampering away and changing strategy without a review. Sometimes, it's necessary to even take some time off trading to cool off before returning to trading if you suffer a losing streak.
If you want to trade, don't risk more than 5% of your portfolio on a trade,
This will be very difficult to adhere to, especially for traders who find it difficult doing the maths of it. I don't stick to that, even though I have read it on several posts to stick to that (most people who advise this are not real traders but marketers and motivational speakers). I check the entry position and then calculate the win to loss ratio. If the win ration is great, I go in and set my SL. And allow the trade roll. That's it for me.
try not to make hops that can scare you (eg set up a trade late at night if you've just deposited so you won't check how it's doing while you're asleep).
Honestly, this is a bad habit and I believe those who trade on impulse will be fond of doing it. While place a trade you won't watch? Even if one places a SL, sometimes the TP can be missed by whiskers and then revert to hit SL. But if one were awake, one could easily take profit manually and save the trade.