DAMN IT! I accidentally submitted the wrong materials to a company that I REALLY wanted to apply for...has this happened to you?

I accidentally attached the wrong cover letter to a company job posting on a network that I am a part of. I have already applied in the past through their HR but thought my application might be more noticeable if it’s through this network – however, I accidentally attached materials that were addressed to another company, making me look like a spazz who doesn’t even apply to positions carefully.

Basically should I just dump any dreams of ever getting a call from them, or is there some way to gracefully fix this mistake? Ever made a similar mistake and bounced back? Or heard of anyone who has?