Well, I think you'll find the message in the following clip offers some inspiration ...... it reminds us to persevere and never give up on ourselves.
Yes, it can be difficult ....but keep in mind what you are standing to eventually gain. Try and learn from the experience, identifying areas where you can improve for your next interview. And you've simply got to HANG IN THERE! If you allow the dismay and frustration to gain control and ascendancy over you, then you won't move yourself forward. So take some time to lick your wounds - but then get moving again.
I hope you enjoy the message in this short video clip