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.
My first real job involved lots of mud and smashed tomatoes and a little bit of shame and I was older than you when I got it.
Of course you're going to be nervous, that is a natural emotion for your brain to have in accompaniment with new and uncertainn experiences. We believe in you! Make us proud!