Should I practice more of dark psychology??

Probably not, I use reframing sometimes though in conversation. Like if I'm late instead of saying sorry I say thanks for waiting for me, works too.

Strive to be a decent human being. The world needs more of that. Be part of the solution not the problem.

Whom you want to do it with?

Practice it? No I don't think you should.

what do you plan to achieve with that ?

Why would you want to waste so much of your mental space on people who are not that important in your life?

What is dark psychology?

Why would you want to

Evil has side effects be ready

Yes