You’re allowed to figure out what emotions you’re feeling in broadly the same way you would with anyone else, which is by paying attention to what you’re actually doing. If you’re behaving in an angry way, maybe you’re actually angry.
The most competent people I know are pretty good at basically anything they put their minds to, because they just design a process and run it. I think this is largely mental and emotional—the hardest part isn’t figuring out the steps, it’s enduring the psychological discomfort of doing them and then adapting.