The sparkly sentence „what you don´t like on others is just a reflection of yourself” is really true. But one needs to be ready to face it.
This magical enlightening moment came for me ca 4 years ago, when I was finally ready to start to realize, how many self-created illusions and false self-belief I was carrying. Oh God! The deep healing of my inner child started. I was postponing it so many years, I didn´t want to look at it, I didn´t want to admit that I have those ugly emotions inside of me. It was quite a furious period, I have to say. 
I have to laugh out loud now, as I picture it.
Yes, the blocks are ugly – negatively judging other people, self justification, greed, doubts, fear, low self confidence, manipulation, jealousy, possessiveness, pretending to be what we are not… It doesn´t matter, if we aggressively demand recognition and approval from others, or go in the passivity of the victimhood, self pity, depression. It is horrible and drives us all nuts. But it is our heritage and task on the planet to transform it in ourselves and in the collective consciousness, to raise our vibration, to raise above the lower human level, and to transmute our being into our higher healed purified self. We are much more than we see, than we admit, than we believe.
I (slowly) learned to see the value of every situation, every challenge, every “injustice”, every unpleasant encounter… It is a jewel telling me something crucial. I can now clearer recognize my limitation, pain, belief – which I need to change. I don´t judge myself anymore for how I feel. I (everybody) can always shift more and more to love, acceptance, compassion. I can´t afford not to be honest and blind to myself anymore. To ignore my shadow half doesn´t make anything easier. To push people with power and prove them wrong doesn´t make anything nicer. The only sense makes love, compassion, unity, respect, freedom, cooperation, kindness.
We can do it, together.