That terrible part-time job taught you patience, people and how to smile on no sleep. Not bad for minimum wage.

Bad jobs teach things good ones cannot. Dealing with someone being unreasonable at you, keeping going when you are exhausted, working with people you did not choose: that is a real education and you got it by accident. None of which makes low pay acceptable or the treatment fair. It just means you did not leave empty-handed.

Write down what you actually learned, in plain terms, because it belongs on an application and in your head. Then be the customer who makes somebody’s shift easier, since you know exactly what that is worth. And keep it in mind whenever you are the one setting anybody’s schedule.