Fucked up an order and couldn't say sorry

Fucked up an order and couldn't say sorry The worse part is it was over the phone. Stuttered on every word and had word blocks. I feel like shit. Why can't I just make a sound? It's so fucking simple. I don't get it. Just fucking sound it out. You know how it sounds but then why are you stuck on it? Sometimes I just wish it would all end... I'm exhausted