I turn 22 this year. I want a job. I have never applied for a job. I know that it does not matter if I embarrass myself in front of an interviewer or if I quit in the first week or get fired. I am still afraid. I wish I could get paid to roll around in mud and have tomatoes thrown at me. This would probably feel less shameful.
I feel you, and for my field at least (computer engineering), having to know a ton of frameworks which do similar things (yay capitalism) before even getting employed, and which I didn't learn at school where I had a structure that was conductive to learning is just as hellish