Contrast, in form like stress, pain, strife, and other forms of dis function, is not an accident of the universe that just happens to you or to 'the unfortunate'.
It's a very specific process designed by the cosmos with delicate precision, to perform a very important function: showing you what you don't want, so you learn to understand what you DO want.
You can't manifest what you truly desire until you know what you do want, and how to redirect your focus to it every time you see more things you don't want.
Problem is, you often get stuck in the first step: seeing and thinking about what you don't want.
And when you stay there, you manifest more if what you don't want.
You are THAT powerful.
You manifest everything you think about. You call it with your own vibration.
If that vibration is "I don't want this, I don't like this, I don't have what I want, I can't have what I want, I'm broken.", the universe brings you more of that contrast because the universe knows you are a deliberate creator, and it doesn't question what you ask for. It just brings you all the vibrational matches to your thoughts.
This is why success in any form, will not drop into anyone's lap regardless of their vibration.
You have to be a genuine place of allowing in order to get into a place of receiving, where things do seem to just drop into our laps, because that's the only time you're sending out the signl to the universe that that is what you really want.
And once you get into that place, just as with the manifestation which confirm situations which match your negative thoughts when you have them, the universe will conspire to bring you what you're giving it: JOY.