Good thing that you’re explaining trading psychology and you only get and learn it through live account (this is one of the cases of training trading psychology).
Trading Psychology is very complex subject in itself and as a Forex trader we will need to learn about it and adjust our trading so that we are not affected by it.
But still it will continue to influence the way we do our trades and earn our income 
Many read books about how to psychologically tune yourself in. Or they read recommendations of other traders. But these recommendations aren’t suitable for everyone. Because everyone has their own phyche, and that means that everyone needs a different approach.