...you change as a person. This can be in a multitude of ways. For me, I have been able to say what I want and to stand up for yourself. I have been able to speak up when things are not working out or when I'm not happy. I've always been a "don't rock the boat" type of person so this is a whole 180 for me. And it feels good. Without it sounding swarmy or cheesy, you realise your worth and that when you're undervalued you need to speak up or step out or seek changes.
...you will apply hundreds of jobs and question your worth, your skills and your competence. You will get rejected by Starbucks (happened to my friend, also called Allison), you will be forced into group interviews and you will never hear back from people.