Can I give you two guys a friendly piece of advice, OK? Don't ever go up to the drive-thru, OK? Always walk up to the counter. You know why? OK, OK, OK, OK, let me tell you, OK. They fuck you at the drive-thru, OK? They fuck you at the drive-thru. They know you're gonna be miles away before you find out you got fucked, OK?
Guilt can be a good thing. It's a soul's call-to-action; the indication that something is wrong. The only way to rid your heart of it is to correct your mistakes and keep going until amends are made. I don't know what you didn't do and what you should've done, but the guilt? The guilt... means your work is not yet finished.