You must have all three to trade successfully and they're written in order of importance.
You must also learn each aspect in the order I have written them. You can be a master of trading psychology or money management, but if you don't have a technical edge you won't make money.
95% of retail traders never overcome step 1, this is why so many fail.
And the bottom line is that it all depends on the trader mentality. I mean no matter how big the profit or loss, as long as their mental state is sound, they will always be able to bounce back. Mindfulness is paramount when trading in volatile markets. Don't be surprised if some people make big profits but end up losing money because their mentality isn't ready for large sums of money, leading them to lose control. So trading psychology determines who you are in the volatile crypto market.