dont worry about it i have learnt more from my mistakes than most other sources, and it tends to be a lot quicker too!
Dont be ashamed to admit your errors and talk about them, sure its embarassing in the macho clubhouse or briefing room environment etc...
The guys who keep schtum always end up in the biggest kerfuffles, history proves that.
Keep smiling theres a lot of people here who have done worse
I on the other hand am waiting for my glorious day..... i pray it never comes.