First, there's the realization you've made a mistake and the consequences of that mistake, so I'll start you out with the requisite Journey song.
Open Arms - Journey
And after you realize your mistake, there's the period of hope that you can somehow fix it, make it right, or at least recover from it, depending on the circumstances.
Amazing - Aerosmith
But then the hard work starts and you have to say you're sorry. But....
Sorry Seems to be the Hardest Word - Elton John
Hard to Say I'm Sorry - Chicago
And often you have to say it a lot more than just one time.
I'm Sorry - John Denver
And hopefully, after all that, if you're lucky you'll get a bonus and realize
Everything's Gonna' Be Alright - Bob Marley
Of course the easiest thing is to just not make the mistake in the first place, but that would mean you're not normal right?