Michelangelo’s great perfect marble David cries out to its observer: “You could be more than you are. - Jordan Peterson

Making something beautiful is difficult, but it is amazingly worthwhile. If you learn to make something in your life truly beautiful—even one thing—then you have established a relationship with beauty. From there you can begin to expand that relationship out into other elements of your life and the world. That is an invitation to the divine. That is the reconnection with the immortality of childhood, and the true beauty and majesty of the Being you can no longer see. You must be daring to try that.

So, attend carefully to your posture. Quit drooping and hunching around. Speak your mind. Put your desires forward, as if you had a right to them – at least the same right as others. Walk tall and gaze forthrightly ahead. Dare to be dangerous. Encourage the serotonin to flow plentifully through the neural pathways desperate for its calming influence.

People, including yourself, will start to assume that you are competent and able (or at least they will not immediately conclude the reverse).

Doing so, will not genuinely increase the probability that good things will happen to you – it will also make those good things feel better they do happen.

If you are not capable of cruelty, then you are absolutely a victim of anyone who is. For those who are exceedingly agreeable, there is a part of them crying out for the incorporation of the monster within them, which is what gives them strength of character and self-respect, because it is impossible to respect yourself until you grow teeth. And if you grow teeth, you realize that you're somewhat dangerous, or seriously dangerous. Then you might be more willing to demand that you treat yourself with respect and that other people do the same thing.
That doesn't mean that being cruel is better than not being cruel. What it means is that being able to be cruel, and then not being cruel, is better than not being able to be cruel, because in the first case you're nothing but weak and naïve, and in the second case you're dangerous but you have it under control. If you're competent at fighting, it actually decreases the probability that you're going to have to fight, because when someone pushes you you'll be able to respond with confidence, and with any luck a reasonable show of confidence, which is a show of dominance, will be enough to make the bully back off.