It is true that there is no success in trading that we can get instantly, everything requires a long process. So we really have to be patient if we want to be a successful trader, so we will experience some losses first. Then the bad experiences we have will make us understand how to trade well.
There are "some" situations when the prices are hyping like crazy where you could make a big profit. I am not saying that it will happen frequently, but remember the times when we moved from few thousand to 20k in 2017, or 10k to over 60k in 2021, and all of those periods allowed people to make quick trades and earn a good amount of money. There were plenty of times where you buy something in the morning and make a 10%+ profit by afternoon or evening.
So, it's not like it's impossible. However, it is also not a common thing and you should not be hoping that it would happen at all times, it's just a few times every 3-4 years and not common at all.