Confidence means non-paralysis, a willingness to act, and act decisively, to start new things and cut failing ventures off.
Everyone has a chance to learn, improve, and build up their skills.
Mastery is great, but even that is not enough. You have to be able to change course without a bead of sweat, or remorse.
Don't 'tolerate' mistakes. Embrace them!
If you're not confused, you're not paying attention.
Now that gigabytes of accessible, malleable information can be carried in one's pocket, we probably will start to see some widespread shifts and trends in how and where people interact with digital documents.