Forgive my crass title, but so many people these days cuss to do harm. I cuss to make points! (Just ask my students at UT Austin).
The point? Give a Shit! Really! If you do, you will:
1.) get the job
2.) get more responsibility
3.) get a raise
4.) get a promotion
5.) achieve your dreams
As soon as you stop giving a sh##, bad things happen.
Persistence is one of the keys to entrepreneurial success, and that means simply keep on giving a shit.