You will, in your life, worry about a shocking number of things you can’t fail at.
Your internal struggle is real, but it’s very separate from external reality. You may be afraid to try a new restaurant, break off a bad relationship, or send an email to a potential client, but you can’t actually fail to do those things. It’s only a mountain if you make it one.
Don’t try to not be afraid. Let yourself be afraid, let yourself be nervous, let anxiety blanket you like freshly fallen snow. And then just do it anyway, because those things don’t physically stop you.