Someone said to me recently that if you're pushing your comfort zone with something then that's a good thing because it means 95% of people WON'T do it and therefore you'll make more money.
I completely agree with this. I recently made some videos for my blog and BOY was I nervous. Before I recorded my first video I was VERY scared because I didn't think it would be good enough, that people would hate my voice, that it wouldn't be professional... etc, etc. But since putting it 'out there' my fears completely went away and I actually discovered that people LOVED what I'd done.
And it's the same with anything in internet marketing. It all seems hard and confusing, but if you're in the 5% of people that DO do things then I think you'll see some pretty positive results. I'm kind of an 'experienced newbie' (it's a long story) but I am learning all the time and willing to 'throw myself in' so to speak.
All I am saying is don't ever think to yourself that your creation (whether it's an ebook, article, video, or whatever) isn't good enough because the chances are it IS, and if you're nervous then it means you care (which should mean you've put a lot of effort in to creating whatever it is.)
So what have you done recently/are doing that is pushing you out of your 'comfort zone'? I would be very interested to know the things people find fearful.