True as hell.
It is not easy, I was stuck in whiny bitch mentality and some of what I whines about was valid but the journey I have been through realising that adversity and drawbacks are just part of life and it is my duty to overcome them has changed my ethos about every part of my life.
I was a loser who blamed the world, now I am still a loser in some ways but I blame me or god and accept it as part of my adventure, god is giving me shit to test if I am worthy. If I break, I break, gotta try until then.
I love hardship, I embrace the bitterness. I would never have wanted a life where I did not experience disappointment and anguish. My life is too precious to not have experienced that side of it. If you are not disappointing yourself and becoming immune to the long term way it makes you wince, you are too fragile and need to work hard on becoming mentally stronger however that is for you. I embrace discomfort, I also appreciate comfort. I embrace disappointment and failure while appreciating when success and good luck come my way.
This is the optimal mentality and red pill motivators taught me it (as did Taoism).