Editorial Position? Can't even edit my own work!

Five more applications sent off this afternoon... After one of them was sent off (too late to take it back), I realised that I had left the wrong company name in the covering letter. Well, let's just hope they don't make lists of people who make such fundamental and ridiculous errors. I definitely will not hear back from them!

If only I did not find the entire process so wholly stressful, I might be more clear headed when applying.