This advice from Kai Von Fintel is gold. I particularly love this statement:
That work was written by a previous time slice of myself that I do not anymore have any privileged access to or even a strong emotional bond with.
I'll second that. Here is another so-true statement -- this time from Geoff Pullum. He offers a good reason why you shouldn't be nervous when you present your ideas. This is a (re-)quote from Kai's site.
REMEMBER THAT YOU’RE AN ADVOCATE, NOT THE DEFENDANT. It’s your idea that’s being presented, not you. The reason for not feeling nervous is that you are not what’s up for consideration... This isn’t about you
Agreed. No skin in the game!