Because you’ll never be ready.
When it comes to fear the mistake we often make is trying to wait for it to go away.
It probably won’t.
But there you are saying no and putting things off because you think that by doing nothing the feeling will go away.
Instead how about try leaning into that feeling (I think Stacey June said something about leaning in on her podcast and maybe she got it from Brene Brown).
Anyway, an important lesson I’ve learnt this year is that you can’t bypass stuff so embrace it.
If not you’ll just end up making excuses and nothing will ever get done.